Best Communication Platform as a Service (cPaaS) Platforms with SMS Capabilities

How Many Communication Platform as a Service (cPaaS) Platforms Products Does G2 Track?

Total Products under this Category: 224

Category Stats (Oct 2026)

  • Average Rating: 4.48/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Vobiz Telephony Infrastructure (+1.62%) - Among all products in this category, Vobiz Telephony Infrastructure recorded the largest rating increase compared to last month

Last updated: October 01, 2026

How Does G2 Rank Communication Platform as a Service (cPaaS) Platforms Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 9,600+ Authentic Reviews
  • 224+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Communication Platform as a Service (cPaaS) Platforms

G2 Grid® for Communication Platform as a Service (cPaaS) Platforms plotting products by satisfaction and market presence

Highlighted products: Sinch Engage, Signal House, Wati, WhatsApp Business Platform, Webex Connect, Telnyx CPaaS, MSG91, and Vonage Communications APIs.

Underlying data: [Grid® JSON](https://www.g2.com/categories/communication-platform-as-a-service-cpaas/grids.json?focus%5B%5D=sinch-engage&focus%5B%5D=signal-house&focus%5B%5D=wati&focus%5B%5D=whatsapp-business-platform&focus%5B%5D=webex-connect&focus%5B%5D=telnyx-cpaas&focus%5B%5D=msg91&focus%5B%5D=vonage-communications-apis)

Webex Connect

Webex Connect is an enterprise Communications Platform as a Service (CPaaS) that enables rapid automation of multi-channel customer journeys. The platform makes it easy for businesses to interact with their customers anywhere in the world on any channel -- SMS, Voice, RCS, Push, In-app, Email, Apple Business Chat, Facebook Messenger, WhatsApp, and other messaging apps, Webex Connect automates orchestration of these interactions with backend systems. A visual drag-&-drop builder allows you to build and launch flows that work across channels and systems. With its low-code tool-set and high-performance run-time engine, Webex Connect enables developers, product managers and architects to accelerate their digital transformation projects.

Average Rating: 4.5/5.0

Total Reviews: 106

How Do G2 Users Rate Webex Connect?

  • Has the product been a good partner in doing business?: 9.4/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.7/10 (Category avg: 8.8/10)
  • Professional Support: 8.9/10 (Category avg: 8.7/10)
  • Unified Communications: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Webex Connect?

  • Seller: Cisco
  • Company Website:
  • Year Founded: 1984
  • HQ Location: San Jose, CA
  • Twitter: @Cisco
    720,366 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    95,294 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Consumer Services
  • Company Size: 43% Medium, 39% Small

What Do G2 Reviewers Say About Webex Connect?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Webex Connect, allowing for efficient communication and team organization.
  • Users appreciate the intuitive automation tools of Webex Connect, which streamline workflow creation and enhance team productivity.
  • Users appreciate the ease of creating automated multi-channel messages with Webex Connect, significantly streamlining communication workflows.
  • Users value the reliability of Webex Connect, experiencing stable calls and consistent performance for efficient daily operations.
  • Users value the efficiency of Webex Connect for seamless communication and reliable meeting features across regions.
Cons
  • Users are frustrated by the expensive pricing structure of Webex Connect, especially with high-volume messaging costs.
  • Users often find the complex setup of Webex Connect challenging, especially for those lacking technical expertise.
  • Users encounter connectivity issues that hinder smooth call transitions and complicate the login experience for others.
  • Users find Webex Connect's difficult navigation challenging, especially when trying to locate settings and documentation.
  • Users find the difficult setup of Webex Connect challenging, particularly for those lacking technical expertise.

What Are Recent G2 Reviews of Webex Connect?

Telnyx CPaaS

Telnyx is the only communications and connectivity platform that combines carrier-owned global communications, programmable APIs, voice AI agents, and edge compute under one roof. Through the Telnyx portal and APIs, teams can provision global numbers in many countries, run SIP trunking with HD voice over a private backbone, and build contact center workflows on the Voice API. Add SMS, MMS, RCS, and WhatsApp messaging and calling, all on the same carrier-owned network, and layer in AI-powered voice agents without wiring together separate vendors. Unlike many CPaaS providers, Telnyx owns the network and delivers the full stack as one system. Whether you're enhancing customer support, automating outbound calls, or embedding voice AI into your product, Telnyx makes it easy to launch and scale with confidence. With direct carrier status and telecom licenses in 35+ countries, PSTN replacement in 50+ countries and local calling in 130+ countries, you get carrier-grade reliability without piecing together multiple providers. And with SOC 2 Type II, PCI, and GDPR compliance built into the platform, you're not sacrificing security or auditability for scale. Every customer gets 24/7 support on every tier, backed by in-house engineering expertise, configuration management, enterprise-grade security, fraud detection, and migration support. Telnyx gives businesses one platform, one provider, and one support team for global communications and real-time AI.

Average Rating: 4.7/5.0

Total Reviews: 511

How Do G2 Users Rate Telnyx CPaaS?

  • Has the product been a good partner in doing business?: 9.3/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.8/10 (Category avg: 8.8/10)
  • Professional Support: 8.9/10 (Category avg: 8.7/10)
  • Unified Communications: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Telnyx CPaaS?

  • Seller: Telnyx
  • Company Website:
  • Year Founded: 2009
  • HQ Location: Austin, Texas, United States
  • Twitter: @telnyx
    4,414 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    415 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Owner
  • Top Industries: Telecommunications, Information Technology and Services
  • Company Size: 81% Small, 16% Medium

What Do G2 Reviewers Say About Telnyx CPaaS?

AI-generated summary from verified user reviews

Pros
  • Users rave about the amazing and responsive customer support of Telnyx CPaaS, enhancing overall satisfaction and ease of use.
  • Users value the ease of use of Telnyx, appreciating its intuitive interface and quick setup process.
  • Users commend the exceptional customer service of Telnyx, highlighting their quick and supportive responses to inquiries.
  • Users commend the easy setup of Telnyx CPaaS, highlighting its intuitive interface and quick configuration process.
  • Users highlight the affordable pricing of Telnyx CPaaS, enhancing accessibility and value in their communication solutions.
Cons
  • Users find the complex processes of Telnyx CPaaS challenging, requiring significant time and support for setup.
  • Users are concerned about the high costs associated with Telnyx, affecting support and overall customer experience.
  • Users express frustration over inefficient customer service, citing poor communication and lack of timely support responses.
  • Users experience long waiting times for support, often struggling to interact with actual representatives for assistance.
  • Users find the new portal not user-friendly, often facing difficulties with navigation and support during onboarding.

What Are Recent G2 Reviews of Telnyx CPaaS?

What Are G2 Users Discussing About Telnyx CPaaS?

MSG91

MSG91 is a comprehensive communication platform designed to facilitate seamless interaction between businesses and their customers across multiple channels. By integrating SMS, WhatsApp, email, voice, and advanced marketing automation tools, MSG91 enables organizations to communicate effectively and efficiently, ensuring that messages are delivered promptly and reliably. Targeted at businesses of all sizes, from startups to large enterprises, MSG91 addresses a variety of communication needs. Its versatile features cater to diverse industries, including e-commerce, fintech, healthcare, and technology. Companies can utilize MSG91 for various use cases such as sending one-time passwords (OTPs) for secure logins, providing order updates, and executing personalized marketing campaigns. This all-in-one solution eliminates the need for multiple vendors, allowing businesses to manage their communication strategies from a single, user-friendly dashboard. Key features of MSG91 include robust APIs for SMS, WhatsApp, and email, which facilitate fast and reliable message delivery. The platform's SMS service ensures global reach with dependable performance, while the WhatsApp Business API allows for engaging customer interactions through verified messaging. Additionally, the Email API supports personalized bulk and transactional emails, complete with detailed analytics to track engagement. The Voice API automates calls and reminders, enhancing customer experience without added complexity. Furthermore, the Hello Chatbot offers 24/7 support, handling conversations and lead management across various channels, ensuring that customer inquiries are addressed promptly. MSG91 stands out in the communication landscape due to its commitment to reliability and compliance. With a 99.9% uptime guarantee and adherence to GDPR, TRAI, and Ofcom messaging standards, businesses can trust that their communications are secure and compliant. The platform also offers transparent pricing with a pay-as-you-go model, ensuring that companies only pay for what they use, without hidden fees. Additionally, MSG91 provides dedicated human support, ensuring that users have access to assistance whenever needed. In a rapidly evolving digital landscape, MSG91 not only focuses on message delivery but also on enhancing customer experiences through intelligent automation and real-time analytics. By leveraging these capabilities, businesses can foster meaningful connections with their customers, driving engagement and growth. With over a decade of experience, MSG91 combines Indian innovation with global reliability, making it a trusted partner for thousands of brands looking to optimize their communication strategies.

Average Rating: 4.5/5.0

Total Reviews: 196

How Do G2 Users Rate MSG91?

  • Has the product been a good partner in doing business?: 9.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.5/10 (Category avg: 8.8/10)
  • Professional Support: 8.9/10 (Category avg: 8.7/10)
  • Unified Communications: 8.8/10 (Category avg: 8.6/10)

Who Is the Company Behind MSG91?

  • Seller: MSG91
  • Company Website:
  • Year Founded: 2010
  • HQ Location: Indore, MP
  • Twitter: @msg91
    2,283 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    36 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 51% Small, 22% Medium

What Do G2 Reviewers Say About MSG91?

AI-generated summary from verified user reviews

Pros
  • Users commend the responsive support of MSG91, highlighting their professionalism and helpfulness throughout the process.
  • Users commend MSG91 for its helpful support and easy integration, enhancing user confidence and overall experience.
  • Users praise the ease of use of MSG91, highlighting its simple integration and user-friendly dashboard.
  • Users praise the easy setup of MSG91, highlighting its guided process and reliable integration for their messaging needs.
  • Users commend the excellent staff support at MSG91, highlighting responsiveness and professionalism throughout their experience.
Cons
  • Users find the dashboard issues in MSG91 to be cluttered, complicating navigation and feature discovery.
  • Users find a lack of clarity in MSG91's dashboard and documentation, complicating the setup and usage experience.
  • Users experience occasional delays in delivery reports, impacting the efficiency and reliability of MSG91's services.
  • Users criticize poor customer support, citing challenges with initial setup and lack of clear documentation.
  • Users find the poor interface design of MSG91 leads to a cluttered, confusing experience that hampers usability.

What Are Recent G2 Reviews of MSG91?

What Are G2 Users Discussing About MSG91?

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Vonage Communications APIs

Vonage Communications APIs enable you to transform your customer experiences with programmable video, voice, messaging, and more. With Vonage APIs, growing startups and agile enterprises can build best-in-class communications solutions at scale. Our global platform, comprehensive suite of communications channels, and expert support help you move quickly to offer your customers the most helpful experience possible. Our APIs connect you to Vonage’s Tier 1 network as well as more than 1,600 telecommunications networks around the world for the best quality and scalability in the market. For developers, the Vonage API platform provides a comprehensive set of tools and resources to get started quickly and build applications easily. Managing your Vonage API account is just as easy. You can use the simple but powerful Vonage API Dashboard or manage your account directly through an API.

Average Rating: 4.2/5.0

Total Reviews: 367

How Do G2 Users Rate Vonage Communications APIs?

  • Has the product been a good partner in doing business?: 8.4/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.8/10 (Category avg: 8.8/10)
  • Professional Support: 8.3/10 (Category avg: 8.7/10)
  • Unified Communications: 8.9/10 (Category avg: 8.6/10)

Who Is the Company Behind Vonage Communications APIs?

  • Seller: Vonage
  • Year Founded: 2001
  • HQ Location: Holmdel, NJ
  • Twitter: @Vonage
    11,195 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2,820 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CTO, CEO
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 67% Small, 23% Medium

What Do G2 Reviewers Say About Vonage Communications APIs?

AI-generated summary from verified user reviews

Pros
  • Users value the easy integration of Vonage Communications APIs, enhancing communication across various platforms effortlessly.
  • Users value the dependable and easy-to-integrate APIs from Vonage, enhancing communication and simplifying developer engagement.
  • Users appreciate the ease of use of Vonage Communications APIs, enabling efficient integration and smooth communication solutions.
  • Users appreciate the easy setup of Vonage Communications APIs, enabling smooth integration of communication features.
  • Users praise the clear and comprehensive documentation of Vonage APIs, facilitating easy integration for all developer levels.
Cons
  • Users find Vonage Communications APIs to be expensive, particularly challenging for small teams or startups on a budget.
  • Users find the complex UI of Vonage APIs challenging, especially when managing multiple numbers or features.
  • Users find the difficult setup challenging, especially for advanced features and managing the dashboard effectively.
  • Users experience poor customer support, with slow response times and difficulties during technical issues affecting their service experience.
  • Users experience poor documentation, leading to challenges in implementation and a reliance on trial-and-error for solutions.

What Are Recent G2 Reviews of Vonage Communications APIs?

What Are G2 Users Discussing About Vonage Communications APIs?

Bandwidth

With Bandwidth, enterprises deliver exceptional communication experiences everywhere. We enable you to integrate voice, messaging, and emergency services into your communications the way you want. Offering the simplicity of one command center, the Bandwidth platform enables a fully customized employee and customer communications stack with: - Dynamic communication APIs - The most direct-to-carrier integrations in the world - An owned and operated network that reaches 65+ countries - Automation to manage it all and get call quality and message deliverability insights via the Bandwidth app You scale with reliability, compliance expertise, and award-winning support.

Average Rating: 4.4/5.0

Total Reviews: 456

How Do G2 Users Rate Bandwidth?

  • Has the product been a good partner in doing business?: 9.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.1/10 (Category avg: 8.8/10)
  • Professional Support: 8.3/10 (Category avg: 8.7/10)
  • Unified Communications: 8.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Bandwidth?

  • Seller: Bandwidth
  • Company Website:
  • Year Founded: 1999
  • HQ Location: Raleigh, NC
  • Twitter: @bandwidth
    10,453 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,243 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Owner
  • Top Industries: Telecommunications, Information Technology and Services
  • Company Size: 44% Small, 36% Medium

What Do G2 Reviewers Say About Bandwidth?

AI-generated summary from verified user reviews

Pros
  • Users find that the ease of use in Bandwidth's portal makes porting straightforward and user-friendly.
  • Users commend Bandwidth for its excellent customer support and responsive account management, enhancing overall experience.
  • Users praise the excellent customer service of Bandwidth, highlighting the helpfulness and responsiveness of the support team.
  • Users enjoy the high reliability of Bandwidth, with a dependable connection and excellent call quality for business needs.
  • Users enjoy the navigation ease of Bandwidth's portal, simplifying call tracking and account management effectively.
Cons
  • Users find the complex processes for support and transitions to OAuth challenging and cumbersome to navigate.
  • Users express frustration with poor customer service, citing difficulties in ticket management and lack of responsive support.
  • Users face messaging issues with limited logs and formatting, affecting ticket management and overall usability.
  • Users express frustration with time constraints due to restrictive password updates and delayed support responses impacting their experience.
  • Users experience delays in support response times, making problem resolution frustrating and less convenient.

What Are Recent G2 Reviews of Bandwidth?

What Are G2 Users Discussing About Bandwidth?

Infobip

Infobip is a global AI-first cloud communications platform that enables businesses to create connected customer experiences across marketing, sales, and support - from a single, natively built platform. Through one platform, Infobip delivers omnichannel engagement, identity, authentication, and contact centre solutions across SMS, WhatsApp, Email, Viber, Voice, and more helping brands simplify customer communications, drive growth, and improve loyalty. Infobip's infrastructure reaches over 7 billion mobile devices across six continents through 10,000+ connections, including 800+ direct operator connections - one of the largest carrier networks in the industry. New to Infobip? Start for free, no credit card required. The Infobip Self-Service portal lets businesses sign up and start testing in minutes. Explore SMS, WhatsApp, Email, Viber, and Voice on a free trial with up to 100 messages included. When you're ready to scale, choose a pay-as-you-go model for flexible usage, or opt for volume packages with dedicated onboarding, support, and professional services. Whether you're a startup exploring your first campaign or an enterprise managing billions of interactions globally, Infobip has a path that fits. Founded in 2006 by CEO Silvio Kutić and Izabel Jelenić. Headquartered in London with offices across 6 continents.

Average Rating: 4.2/5.0

Total Reviews: 58

How Do G2 Users Rate Infobip?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.4/10 (Category avg: 8.8/10)
  • Professional Support: 8.3/10 (Category avg: 8.7/10)
  • Unified Communications: 9.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Infobip?

  • Seller: Infobip
  • Year Founded: 2006
  • HQ Location: London, England
  • Twitter: @Infobip
    33,954 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    3,531 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Financial Services, Information Technology and Services
  • Company Size: 43% Medium, 38% Small

What Do G2 Reviewers Say About Infobip?

AI-generated summary from verified user reviews

Pros
  • Users find Infobip's interface to be easy to use, enhancing integration and omnichannel communication effortlessly.
  • Users highlight the easy integrations with various tools, enhancing efficiency and simplifying customer engagement.
  • Users praise the easy integrations of Infobip, providing a comprehensive solution for seamless omnichannel communication.
  • Users appreciate the omnichannel engagement of Infobip, facilitating easy customer connection and enhanced segmentation options.
  • Users value the engagement increase offered by Infobip, seamlessly connecting with customers across multiple channels.
Cons
  • Users experience poor customer support with slow response times, often waiting up to three days for assistance.
  • Users experience delays in support responses, often waiting three days for assistance, impacting their overall experience.
  • Users experience poor response times from Infobip's support, often waiting three days for assistance.
  • Users experience delay issues with the support team, impacting their overall satisfaction with Infobip's service.
  • Users feel the need for limited features like cropping options in emails, impacting overall satisfaction with Infobip.

What Are Recent G2 Reviews of Infobip?

What Are G2 Users Discussing About Infobip?

Sendbird

Sendbird is an omnichannel AI agent platform designed to enhance customer experience by facilitating autonomous support and sales conversations. This innovative solution enables businesses to engage with customers across various channels while ensuring that human agents remain available for more complex inquiries. By leveraging AI technology, Sendbird empowers enterprises to proactively communicate with their customers, fostering deeper connections and driving customer satisfaction. Primarily targeting enterprises aiming to improve their customer service and sales processes, Sendbird serves a diverse range of industries, including e-commerce, finance, and telecommunications. The platform is particularly beneficial for organizations that manage a high volume of customer interactions and require efficient handling of these conversations. By automating routine inquiries and interactions, businesses can allocate their human resources to more intricate issues, ultimately optimizing operational efficiency and enhancing overall service quality. One of the standout features of Sendbird is its seamless integration with existing communication channels, allowing businesses to maintain a consistent presence across platforms. This omnichannel approach ensures that customers can reach out for support or sales inquiries through their preferred medium, whether it be chat, email, or social media. Additionally, Sendbird's AI capabilities enable the platform to initiate proactive business messages, re-engaging customers and enhancing their overall experience. This proactive communication not only addresses customer needs but also anticipates them, leading to increased satisfaction and loyalty. The platform's robust communication APIs further differentiate Sendbird from other solutions in the market. These APIs are designed to be scalable and adaptable, allowing businesses to create customized AI agents that cater to their specific requirements. This flexibility enables organizations to develop tailored solutions that resonate with their target audience, ensuring that customer interactions are both meaningful and effective. Moreover, Sendbird's award-winning design underscores its commitment to delivering high-quality communication experiences that prioritize user engagement. Sendbird effectively combines advanced AI technology with a comprehensive communication framework, setting itself apart in the realm of customer engagement solutions. By automating routine tasks and enabling proactive outreach, the platform enhances customer interactions while supporting businesses in achieving their operational goals. With its focus on maintaining human involvement for complex inquiries, Sendbird strikes a balance between efficiency and personalization, making it a valuable tool for enterprises looking to elevate their customer experience.

Average Rating: 4.6/5.0

Total Reviews: 120

How Do G2 Users Rate Sendbird?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.7/10 (Category avg: 8.8/10)
  • Professional Support: 9.0/10 (Category avg: 8.7/10)
  • Unified Communications: 8.6/10 (Category avg: 8.6/10)

Who Is the Company Behind Sendbird?

  • Seller: Sendbird
  • Company Website:
  • Year Founded: 2013
  • HQ Location: San Mateo, California
  • Twitter: @SendBird
    4,840 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    259 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Student Experience Team Member, Product Manager
  • Top Industries: Computer Software, Health, Wellness and Fitness
  • Company Size: 47% Medium, 31% Small

What Do G2 Reviewers Say About Sendbird?

AI-generated summary from verified user reviews

Pros
  • Users find Sendbird easy to use and navigate, enhancing their communication and overall productivity effortlessly.
  • Users commend Sendbird for its punctual and clear customer support, ensuring smooth integration and enhanced communication.
  • Users value the smooth user interface and effective customer support, enhancing daily operations and communication efficiency.
  • Users love the easy integrations of Sendbird, finding it simple to implement and reliable for real-time chats.
  • Users value the easy setup of Sendbird, allowing for smooth integration into their operations without hassle.
Cons
  • Users find Sendbird expensive and often inadequate, especially for medium-sized businesses with limited budgets.
  • Users find the learning curve challenging, especially during initial setup and integration for new users.
  • Users find Sendbird's high cost challenging, particularly for medium-sized businesses and startups with limited budgets.
  • Users express concerns over cost limitations with Sendbird, facing unexpected feature removals and high pricing for medium businesses.
  • Users find the difficult setup of Sendbird challenges their integration process and increases the learning curve for newcomers.

What Are Recent G2 Reviews of Sendbird?

What Are G2 Users Discussing About Sendbird?

Twilio

Today's leading companies trust Twilio's Customer Engagement Platform (CEP) to build direct, personalized relationships with their customers everywhere in the world. Twilio enables companies to use communications and data to add intelligence and security to every step of the customer journey, from sales to marketing to growth, customer service and many more engagement use cases in a flexible, programmatic way. Across 180 countries, millions of developers and hundreds of thousands of businesses use Twilio to create magical experiences for their customers.

Average Rating: 4.1/5.0

Total Reviews: 459

How Do G2 Users Rate Twilio?

  • Has the product been a good partner in doing business?: 8.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.1/10 (Category avg: 8.8/10)
  • Professional Support: 6.6/10 (Category avg: 8.7/10)
  • Unified Communications: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind Twilio?

  • Seller: Twilio
  • Company Website:
  • Year Founded: 2008
  • HQ Location: San Francisco, CA
  • Twitter: @twilio
    81,644 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    7,801 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Senior Software Engineer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 50% Small, 31% Medium

What Do G2 Reviewers Say About Twilio?

AI-generated summary from verified user reviews

Pros
  • Users highlight the ease of use of Twilio, facilitating quick decision-making and seamless integration with systems.
  • Users commend Twilio for its easy integrations, enhancing communication workflows and improving overall business efficiency.
  • Users value Twilio's extensive integrations, making it easy to connect and implement across various applications effortlessly.
  • Users value Twilio for its easy setup, enabling seamless integration into various applications with minimal effort.
  • Users highlight Twilio's easy API integration with CRM systems, enhancing communication and workflow efficiency.
Cons
  • Users find Twilio's pricing to be too expensive, especially challenging for small-scale startups despite the service quality.
  • Users report poor customer support from Twilio, with slow responses affecting overall user experience and satisfaction.
  • Users find the difficult configuration of Twilio challenging, especially for those without programming skills or technical knowledge.
  • Users find the complex setup for advanced features like IVR and multi-channel workflows challenging for smaller teams.
  • Users find the technical knowledge required for Twilio essential, making it challenging for non-developers to utilize effectively.

What Are Recent G2 Reviews of Twilio?

What Are G2 Users Discussing About Twilio?

Plivo

Plivo is a voice-first AI agent platform designed to streamline multi-channel customer engagement through various communication methods, including phone calls, chat, WhatsApp, SMS, email, and Slack. This innovative solution caters to consumer-facing businesses that aim to enhance their customer interactions by utilizing conversational AI agents. These agents are capable of initiating, answering, assisting, and completing customer conversations, delivering interactions that mimic human-like, natural-sounding dialogue across both voice and messaging channels. The platform is particularly beneficial for businesses looking for efficient customer communications without the need for extensive technical expertise. With Vibe, Plivo’s no-code AI agent builder, users can create and deploy custom voice agents simply by providing straightforward instructions in English. This user-friendly approach eliminates the need for programming skills, making it accessible to a wider range of users, from small businesses to large enterprises. The combination of built-in enterprise-grade telephony, deep partnerships with leading Text-to-Speech (TTS), Speech-to-Text (STT), and Large Language Model (LLM) providers allow companies to design production-ready low-latency (<500ms) voice AI agents at scale, with minimal operational overhead. The seamless integration with popular CRM and support tools further enhances its utility, allowing organisations to leverage existing systems and workflows. This capability is particularly valuable for companies seeking to maintain consistent customer experiences across multiple channels while ensuring that their AI agents can handle a variety of customer inquiries effectively. Plivo’s platform stands out for its vertically integrated Voice AI stack that unifies built-in telephony, speech recognition, synthesis, and reasoning layers in one low-latency system. This integration eliminates the complexity of stitching together multiple vendors, giving enterprises real-time responsiveness, carrier-grade reliability, and full control over voice quality. Combined with Plivo’s no-code Vibe builder and proven CPaaS infrastructure, businesses can move from prototype to production voice agent in minutes, not months. In addition to its AI agent capabilities, Plivo offers an enterprise-grade Communications Platform as a Service (CPaaS) suite. This suite includes essential tools such as SMS API, Voice API, WhatsApp API, Verify API, Number Masking, and SIP Trunking. These features provide enterprises with programmatic control over their voice and messaging infrastructure, enabling them to tailor communication strategies to their specific needs. By combining advanced AI technology with robust communication tools, Plivo equips businesses with the resources necessary to enhance customer engagement and drive operational efficiency.

Average Rating: 4.5/5.0

Total Reviews: 742

How Do G2 Users Rate Plivo?

  • Has the product been a good partner in doing business?: 9.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.9/10 (Category avg: 8.8/10)
  • Professional Support: 8.6/10 (Category avg: 8.7/10)
  • Unified Communications: 8.8/10 (Category avg: 8.6/10)

Who Is the Company Behind Plivo?

  • Seller: Plivo
  • Year Founded: 2011
  • HQ Location: Austin, TX
  • Twitter: @plivo
    12,543 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    196 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Software Engineer
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 78% Small, 17% Medium

What Do G2 Reviewers Say About Plivo?

AI-generated summary from verified user reviews

Pros
  • Users enjoy the ease of use of Plivo, which simplifies building powerful communication solutions effectively.
  • Users value Plivo's amazing customer support, noting their courteous follow-up and effective assistance when debugging issues.
  • Users appreciate the easy integration and robust features of Plivo, enhancing communication and campaign management.
  • Users commend Plivo for its competitive pricing, offering exceptional value for comprehensive communication solutions.
  • Users value the API quality of Plivo, appreciating its seamless integration for diverse communication solutions.
Cons
  • Users express concerns over poor customer support, highlighting slow response times and unhelpful ticket-based assistance.
  • Users find Plivo's pricing to be expensive, particularly for Voice APIs and SMS services in some regions.
  • Users find Plivo has limited features and require additional costs for advanced functionalities and better service.
  • Users experience messaging issues due to slow support response times and complications with SMS delivery to clients.
  • Users find the user interface not intuitive, hindering ease of use for those without coding experience.

What Are Recent G2 Reviews of Plivo?

What Are G2 Users Discussing About Plivo?

Stream Chat

Stream Chat is a messaging API and SDK suite for developers building in-app chat. Teams integrate it to ship production messaging in weeks instead of building and maintaining real-time infrastructure in-house. Client SDKs cover React, Swift, Android, Flutter, React Native, Angular, JavaScript, Unity, and Unreal, each with a UI kit you can customize or replace entirely. The backend runs on Go and RocksDB across 12 global edge locations, holding sub-40ms latency and 5M concurrent connections in a single channel behind a 99.999% uptime SLA. Features include threads, reactions, typing indicators, read receipts, push notifications, message search, translation, AI moderation, and role-based permissions. SOC 2, ISO 27001, GDPR, and HIPAA compliant. Used by 4,000+ companies including Strava, Patreon, and Nextdoor, serving over 1 billion end users.

Average Rating: 4.5/5.0

Total Reviews: 52

How Do G2 Users Rate Stream Chat?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.6/10 (Category avg: 8.8/10)
  • Professional Support: 8.6/10 (Category avg: 8.7/10)
  • Unified Communications: 8.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Stream Chat?

  • Seller: Stream
  • Year Founded: 2015
  • HQ Location: Boulder, US
  • Twitter: @getstream_io
    12,275 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    332 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, CTO
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 64% Small, 23% Medium

What Do G2 Reviewers Say About Stream Chat?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Stream Chat, facilitating seamless team communication and efficient video sharing.
  • Users value the easy integration of Stream Chat, appreciating the clear documentation and fast API setup.
  • Users appreciate the simplicity of Stream Chat, enjoying seamless connectivity and effortless video sharing for teams.
  • Users praise the developer-friendly API of Stream Chat, highlighting its ease of integration and time-saving benefits.
  • Users appreciate the developer-friendly API of Stream Chat, enabling quick and easy integration for chat features.
Cons
  • Users report analytics limitations in Stream Chat, finding them basic and not valuable for effective content management.
  • Users express concerns about the high costs of Stream Chat, especially for smaller projects and startups as they scale.
  • Users find the difficult setup challenging, especially for beginners needing more real-world examples in documentation.
  • Users find the pricing to be excessive, especially for smaller projects and growing user bases, impacting overall value.
  • Users experience filtering issues with Stream Chat, making it difficult to locate specific discussions and manage content effectively.

What Are Recent G2 Reviews of Stream Chat?

What Are G2 Users Discussing About Stream Chat?

CM.com

Today, people all over the world are connected via their mobile phones. All-day, every day. Businesses, as well as their customers, are looking for more efficient and customer-centric ways to communicate with each other through mobile channels. Conversational Commerce promises just that; you can be exactly where your customers are. Conversational Commerce is the smart combination of all the popular messaging channels, data tools, and payment solutions. It allows customers to contact businesses and finish the path-to-purchase within their favorite messaging channel. Have rich, efficient and customer-centric conversations with your customer on mobile, without any technological barriers. CM.com provides a smart combination of messaging channels, such as SMS, RCS, WhatsApp Business, and Apple Business Chat combined with a Customer Data Platform and other platform features. CM.com is one of the first Cloud Communication Platforms in the world with integrated Payment functionality. The CM.com platform can be used via API and Web App.

Average Rating: 4.8/5.0

Total Reviews: 11

How Do G2 Users Rate CM.com?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.2/10 (Category avg: 8.8/10)
  • Professional Support: 9.2/10 (Category avg: 8.7/10)
  • Unified Communications: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind CM.com?

  • Seller: CM.com
  • Year Founded: 1999
  • HQ Location: Breda, Noord-Brabant
  • Twitter: @CMcom_
    1,698 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    744 employees on LinkedIn®
  • Ownership: AMS: CMCOM

Who Uses This Product?

  • Company Size: 50% Small, 50% Medium

What Are Recent G2 Reviews of CM.com?

What Are G2 Users Discussing About CM.com?

Kaleyra

Kaleyra is a global cloud communications platform that offers multi-channel integrated services to financial institutions and enterprises.

Average Rating: 4.5/5.0

Total Reviews: 14

How Do G2 Users Rate Kaleyra?

  • Has the product been a good partner in doing business?: 7.9/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.3/10 (Category avg: 8.8/10)
  • Professional Support: 9.1/10 (Category avg: 8.7/10)
  • Unified Communications: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Kaleyra?

  • Seller: Kaleyra
  • Year Founded: 1999
  • HQ Location: Milano, Milan, Italy
  • LinkedIn® Page: www.linkedin.com
    6 employees on LinkedIn®
  • Ownership: NYSE: KLR

Who Uses This Product?

  • Company Size: 36% Medium, 36% Small

What Do G2 Reviewers Say About Kaleyra?

AI-generated summary from verified user reviews

Pros
  • Users value the instant response from the customer support team, which enhances their overall experience with Kaleyra.
Cons
  • Users express frustration over the missing latest WA features, impacting the overall functionality and execution speed of Kaleyra.
  • Users experience slow performance with Kaleyra, noting an execution speed that hinders efficiency and missing features.

What Are Recent G2 Reviews of Kaleyra?

What Are G2 Users Discussing About Kaleyra?

Voximplant

Voximplant is a communications platform as a service, it allows developers to add real-time communications features (voice, video and messaging) in their applications without a need to build any backend infrastructure. Voximplant architecture is designed for serverless: developers upload their JavaScript code into our cloud and uploaded code is being executed automatically when a call arrives at the platform or when an HTTP API command is executed. A call can arrive at the platform from a phone network, from a SIP device or application, and from Voximplant Web or Mobile SDK.

Average Rating: 4.8/5.0

Total Reviews: 32

How Do G2 Users Rate Voximplant?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.3/10 (Category avg: 8.8/10)
  • Professional Support: 9.4/10 (Category avg: 8.7/10)
  • Unified Communications: 8.9/10 (Category avg: 8.6/10)

Who Is the Company Behind Voximplant?

  • Seller: VoxImplant
  • Year Founded: 2013
  • HQ Location: Palo Alto, California
  • Twitter: @voximplant
    977 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    208 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 54% Medium, 31% Small

What Do G2 Reviewers Say About Voximplant?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Voximplant, making customer calls straightforward and efficient.
  • Users value the easy communication Voximplant offers, streamlining customer calls with numerous helpful features.
  • Users appreciate how Voximplant makes customer calling easy with its multitude of features for enhanced communication.
Cons
  • Users experience connectivity issues that hinder the performance of Voximplant, needing a strong internet connection to function properly.
  • Users note that a strong internet connection is essential for Voximplant to function properly.
  • Users note the necessity of a strong internet connection for Voximplant to function properly and avoid issues.

What Are Recent G2 Reviews of Voximplant?

What Are G2 Users Discussing About Voximplant?

Sinch

Sinch is a cloud communications platform as a service (CPaaS) solution that helps businesses engage customers across messaging, voice, email, and verification channels. Founded in 2008 and headquartered in Stockholm, Sweden, with additional operations in Atlanta, Georgia, Sinch serves more than 200,000 businesses worldwide, including 8 of the 10 largest U.S. technology companies. The company operates in more than 65 countries and is publicly traded on Nasdaq Stockholm (XSTO: SINCH). Sinch's platform combines APIs, applications, and a directly connected global network to deliver customer communications at scale. Key capabilities include: - Messaging: SMS, RCS, MMS, and WhatsApp APIs and applications for marketing campaigns and customer notifications - Voice: Programmable voice APIs and SIP trunking for call routing and voice-based customer service - Email: Transactional and marketing email infrastructure for deliverability at scale - Verification: Phone number, SMS, and flash-call verification APIs for identity checks and fraud prevention - Agent Tools: MCP, Functions, and Skills for connecting AI agents to Sinch's communication channels, alongside support for third-party AI and partner platforms Sinch is built for organizations that need to reach customers reliably across multiple channels without managing separate vendor relationships for each one. Direct connections to more than 600 carriers and operators, along with ISO 27001, ISO 9001, PCI DSS, and SOC I and II certification and GDPR and HIPAA compliance, support use cases ranging from marketing campaigns and account notifications to identity verification and customer service. The platform is recognized as a Leader in the 2026 Gartner Magic Quadrant for CPaaS and the IDC MarketScape for Communications Engagement Platforms.

Average Rating: 3.8/5.0

Total Reviews: 33

How Do G2 Users Rate Sinch?

  • Has the product been a good partner in doing business?: 6.8/10 (Category avg: 9.0/10)
  • Ease Of Integration: 7.1/10 (Category avg: 8.8/10)
  • Professional Support: 5.7/10 (Category avg: 8.7/10)
  • Unified Communications: 6.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Sinch?

  • Seller: Sinch
  • Company Website:
  • Year Founded: 2008
  • HQ Location: Stockholm, Sweden
  • Twitter: @wearesinch
    3,648 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4,417 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 43% Small, 37% Medium

What Do G2 Reviewers Say About Sinch?

AI-generated summary from verified user reviews

Pros
  • Users value the versatile connectivity options of Sinch, making client communication seamless and effective across multiple platforms.
  • Users find Sinch to be an easy-to-use tool that simplifies business messaging and enhances customer engagement.
  • Users value the flexibility of Sinch for integrating various messaging services and enhancing customer communication.
  • Users value the easy integration of Sinch for seamless multi-channel business messaging across various platforms.
  • Users appreciate the versatile user interface of Sinch, making it easy to connect through various messaging services.
Cons
  • Users report receiving numerous robocalls daily from scammers utilizing the Sinch platform, leading to frustration.
  • Users find the complex features initially challenging, but usability improves with familiarity over time.
  • Users find Sinch's complex hierarchy challenging, especially smaller businesses or newcomers to communication solutions.
  • Users find Sinch's setup complex, especially challenging for smaller businesses and newcomers to communications platforms.
  • Users report experiencing connectivity issues with Sinch, particularly concerning frequent robocalls from scammers.

What Are Recent G2 Reviews of Sinch?

What Are G2 Users Discussing About Sinch?

Weavy

Next-generation building blocks for developers. Weavy is a complete toolkit for developers to add collaboration, productivity, and community features to web and mobile apps at a fraction of the cost and time. Our API, SDKs, and UI Kits for Chat, Files, and Feeds enable dev teams to increase functionality and connect users while focusing on your core product. All Weavy features include integrations to the third-party tools your users are already familiar with: add capabilities for Zoom and Teams video conferencing, Google Drive, OneDrive, Dropbox, or Box file sharing, document sync, and versioning contextually inside your app. Weavy allows app developers to quickly add the features that users need to be productive and interactive directly within their app. With our API, SDKs, and UI kits, you can deploy chat, feeds, and file features in a matter of days, not months, and at a fraction of the cost of building in-house. Focus on your core product while adding functionality that improves your user experience and increases user engagement and dependency on your app.

Average Rating: 4.7/5.0

Total Reviews: 61

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How Do G2 Users Rate Weavy?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.9/10 (Category avg: 8.8/10)
  • Professional Support: 9.4/10 (Category avg: 8.7/10)
  • Unified Communications: 8.9/10 (Category avg: 8.6/10)

Who Is the Company Behind Weavy?

  • Seller: Weavy
  • Year Founded: 2020
  • HQ Location: El Segundo, California
  • LinkedIn® Page: www.linkedin.com
    17 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 79% Small, 13% Medium

What Do G2 Reviewers Say About Weavy?

AI-generated summary from verified user reviews

Pros
  • Users commend Weavy for its ease of use, highlighting the intuitive tools and straightforward integration process.
  • Users value the easy integrations of Weavy, enhancing their applications with minimal complications and excellent support.
  • Users appreciate the easy integration of Weavy, benefiting from customizable features and excellent support throughout the process.
  • Users appreciate the seamless chat functionality of Weavy, simplifying integration and saving valuable development time and resources.
  • Users value the seamless integration of Weavy, enabling quick and easy setup for customized chat solutions.
Cons
  • Users find Weavy's poor documentation challenging, often relying on support for help with basic queries.
  • Users find the limited customization options challenging and desire easier ways to modify Weavy's JS UI kit.
  • Users find the lack of detailed documentation frustrating, which impacts their ability to effectively use Weavy.
  • Users report that while support is generally responsive, there is a need for enhanced community support and clearer documentation.
  • Users find Weavy's difficult customization challenging, wishing for more straightforward styling options and better documentation.

What Are Recent G2 Reviews of Weavy?

What Are G2 Users Discussing About Weavy?