Top Free Communication Platform as a Service (cPaaS) Platforms - Page 3

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

Total Products under this Category: 222

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
  • 9,300+ Authentic Reviews
  • 222+ 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, Webex Connect, Telnyx CPaaS, MSG91, Vonage Communications APIs, and Bandwidth.

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=webex-connect&focus%5B%5D=telnyx-cpaas&focus%5B%5D=msg91&focus%5B%5D=vonage-communications-apis&focus%5B%5D=bandwidth-bandwidth)

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?

ClickSend

ClickSend is a simple, reliable SMS platform built for businesses that can't afford to miss a message. It’s seriously simple infrastructure that works straight out of the box — and keeps working as you grow. Backed by genuinely helpful 24/7 support from people who actually know their stuff. Send from the Dashboard in just a few clicks — or straight from your email inbox. Build with our clean, well-loved API docs. Or connect through hundreds of integrations and slot it straight into the tools your team already uses. Most users are up and sending within minutes. No developers required (but if you have one, they'll love us too). Why 90,000+ businesses and developers choose ClickSend: · Direct carrier routes to 190+ countries — no middlemen, no grey routes · 99.95%+ uptime so your messages go out when it matters · Lightning-fast delivery for time-sensitive comms · Pay-as-you-go pricing — scale up, scale down, only ever pay for what you send · 24/7 support from real people who actually understand the platform It's built for operational messaging as much as marketing. Appointment reminders, delivery notifications, 2FA codes, staff alerts, booking confirmations — the communications that keep a business running day to day. Trusted by healthcare and wellness clinics, financial services, real estate agencies, education providers, event organisers, construction companies and not-for-profits — and the developers building messaging into their products and workflows.

Average Rating: 4.1/5.0

Total Reviews: 49

How Do G2 Users Rate ClickSend?

  • Has the product been a good partner in doing business?: 8.4/10 (Category avg: 9.0/10)
  • Ease Of Integration: 10.0/10 (Category avg: 8.8/10)

Who Is the Company Behind ClickSend?

  • Seller: ClickSend
  • Year Founded: 2013
  • HQ Location: Perth, WA
  • Twitter: @ClickSendSMS
    442 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    97 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Marketing and Advertising, Information Technology and Services
  • Company Size: 69% Small, 20% Medium

What Do G2 Reviewers Say About ClickSend?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the user-friendly interface of ClickSend, enabling effortless navigation and efficient communication solutions.
  • Users value the easy integration with other tools, enhancing their marketing campaigns and improving workflow efficiency.
  • Users love the well-priced solutions from ClickSend, offering great value for diverse marketing needs and ease of use.
  • Users enjoy ClickSend's user-friendly interface, facilitating effortless navigation and efficient messaging across various channels.
  • Users commend the affordability of ClickSend, finding it a cost-effective and versatile marketing solution.
Cons
  • Users find ClickSend to be expensive, which can limit accessibility and customization options for some users.
  • Users find ClickSend's pricing to be a bit expensive, particularly challenging for businesses with high messaging volumes.
  • Users find ClickSend's limited customization options restrict their ability to personalize messaging for specific needs.
  • Users find ClickSend has missing features, lacking some advanced functionalities available in more sophisticated programs.
  • Some users find ClickSend's SMS service expensive and experience occasional delivery delays, impacting their messaging reliability.

What Are Recent G2 Reviews of ClickSend?

What Are G2 Users Discussing About ClickSend?

Gallabox

Gallabox is an AI-powered customer conversation platform built for businesses that depend on fast, consistent and high-quality customer engagement. The platform helps teams manage conversations across WhatsApp, Instagram, web chat and voice, bringing AI agents, automation, team inbox workflows and customer context into one connected system. Instead of treating customer conversations as scattered messages, Gallabox helps businesses turn them into structured journeys that support lead capture, qualification, follow-ups, bookings, payments, support and revenue growth. Designed for conversation-led businesses, Gallabox serves teams across industries such as real estate, education, healthcare, travel, financial services, e-commerce, automotive and professional services. The platform is especially useful for businesses that receive a high volume of customer inquiries across multiple channels and need a reliable way to respond quickly, qualify intent and move customers toward the next step. With its shared team inbox, AI-powered automation and conversation history, Gallabox helps sales, marketing and support teams collaborate more effectively and ensure that no high-intent customer interaction is missed. Gallabox enables businesses to deploy AI agents that can answer common questions, qualify leads, capture customer details, book appointments, trigger follow-ups and hand over conversations to the right team member with context. These AI agents work alongside human teams, helping them reduce repetitive work while staying focused on high-value conversations. Businesses can automate key customer journeys, including Click-to-WhatsApp lead capture, Instagram DM responses, web chat inquiries, voice follow-ups, drip campaigns, broadcasts, appointment reminders, payment nudges and post-purchase engagement. A key strength of Gallabox is its ability to connect customer conversations with the tools businesses already use. The platform integrates with CRMs, payment systems, calendars, marketing tools, commerce platforms and automation workflows, including tools such as Zoho CRM, HubSpot, Shopify, WooCommerce, Razorpay, Google Calendar, Calendly, Zapier and more. These integrations help businesses sync customer data, route conversations, update lead stages, collect payments, track campaign performance and maintain continuity across the customer journey. Gallabox is built for businesses that want more than a messaging tool. It gives customer-facing teams the speed, structure and visibility they need to manage conversations across channels, automate repetitive workflows and improve conversion outcomes. By combining AI agents, omnichannel engagement, shared team collaboration and integrations in one platform, Gallabox helps businesses respond faster, qualify better and create more connected customer experiences from first inquiry to conversion and beyond.

Average Rating: 4.6/5.0

Total Reviews: 164

How Do G2 Users Rate Gallabox?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.3/10 (Category avg: 8.8/10)
  • Professional Support: 9.2/10 (Category avg: 8.7/10)
  • Unified Communications: 8.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Gallabox?

  • Seller: MangoLeap
  • Company Website:
  • Year Founded: 2020
  • HQ Location: Chennai, IN
  • Twitter: @gallabox
    147 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    98 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Founder, CEO
  • Top Industries: Education Management, Apparel & Fashion
  • Company Size: 73% Small, 21% Medium

What Do G2 Reviewers Say About Gallabox?

AI-generated summary from verified user reviews

Pros
  • Users find Gallabox to be intuitive and easy to set up, enhancing their customer communication efforts seamlessly.
  • Users praise Gallabox for its automation capabilities, enhancing communication efficiency and response times effortlessly.
  • Users value the excellent customer support provided by Gallabox, enhancing their overall experience and success.
  • Users praise Gallabox for its seamless integrations, particularly with WhatsApp and HubSpot, enhancing their workflow efficiency.
  • Users highlight the easy integrations of Gallabox, enhancing WhatsApp management with seamless CRM connectivity.
Cons
  • Users find the dashboard features limited, lacking essential insights and intuitive setup for automation journeys.
  • Users find the reporting capabilities inadequate, lacking detailed insights into performance and team metrics.
  • Users desire more flexibility in customization for Gallabox templates, seeking tailored solutions to meet unique needs.
  • Users find Gallabox's limited training resources hinder effective automation and overall communication efficiency.
  • Users find the poor customer support of Gallabox lacking, emphasizing the need for improved response and follow-up.

What Are Recent G2 Reviews of Gallabox?

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Dial - Phone Numbers for AI Agents

Dial gives AI agents their own communication identity. Through a single REST API or MCP tool, agents can provision real US, Canadian, and international phone numbers and immediately send and receive SMS, WhatsApp messages, and voice calls - no carrier setup, no separate integrations for each channel. Dial is built for the agentic era, where AI agents increasingly need to act on behalf of users: signing up for services, completing 2FA/OTP verification, placing outbound calls with a local caller ID, and handling inbound communication across every channel. A unified webhook routes calls, SMS, and WhatsApp messages back to the agent in a consistent format, so developers don't have to stitch together multiple providers. Integration is designed to be fast. Dial offers Python and Node.js SDKs, a REST API, and an MCP server that works out of the box with Claude Code, Cursor, Windsurf, VS Code, OpenAI Agents, and any MCP-compatible client. New users get $5 in credit automatically with no credit card required, and a phone number can be live within about 30 seconds. Key capabilities include real phone number provisioning via API, two-way SMS worldwide, WhatsApp reach in 180+ countries, inbound and outbound voice calls with real-time transcription and text-to-speech replies, and a single unified webhook across all channels. Dial also authors the Agent Channel Exchange Standard (ACES), an open protocol addressing how communication infrastructure needs to evolve for a world with far more agents than humans.

Average Rating: 4.8/5.0

Total Reviews: 12

How Do G2 Users Rate Dial - Phone Numbers for AI Agents?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 10.0/10 (Category avg: 8.8/10)
  • Professional Support: 9.6/10 (Category avg: 8.7/10)
  • Unified Communications: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Dial - Phone Numbers for AI Agents?

  • Seller: Dial
  • HQ Location: San Francisco, US
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 92% Small, 8% Medium

What Are Recent G2 Reviews of Dial - Phone Numbers for AI Agents?

TrustSignal

Trustsignal.io , a prominent player in the A2P SMS domain. With a wealth of experience in the industry, we have consistently delivered exceptional communication solutions to businesses across diverse sectors. Our unwavering commitment to quality, reliability, and innovation sets us apart, positioning us as the ideal partner for all your communication needs. At TrustSignal.io, we offer a comprehensive range of services, including SMS, OTP notifications, RCS messaging, Voice solutions, Email and WhatsApp for Business. We take great pride in our commitment to transparency and accountability. We understand the importance of credibility and trust in our industry. The best part of Trustsignal is that we are open to customisations as per your requirements.

Average Rating: 4.6/5.0

Total Reviews: 11

How Do G2 Users Rate TrustSignal?

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

Who Is the Company Behind TrustSignal?

Who Uses This Product?

  • Top Industries: Apparel & Fashion
  • Company Size: 73% Small, 27% Medium

What Do G2 Reviewers Say About TrustSignal?

AI-generated summary from verified user reviews

Pros
  • Users praise the outstanding customer support of TrustSignal, consistently meeting expectations and aiding in business growth.
  • Users praise the exceptional staff support of TrustSignal, highlighting their communication and responsiveness throughout the process.
  • Users praise the communication from TrustSignal's team, highlighting their guidance and prompt responses throughout the experience.
  • Users praise the ease of use of TrustSignal's services, enhancing customer retention and business growth.
  • Users appreciate the super fast response time of TrustSignal, enhancing their overall experience with excellent support.
Cons
  • Users note the expensive pricing of TrustSignal, finding it higher than competitors in the market.

What Are Recent G2 Reviews of TrustSignal?

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?

Commio

Commio delivers a better way to power voice and text messaging in the cloud. Get up and running fast with our integrated Commio io portal or flexible APIs. We make it easy to bring your own 40 high-quality carriers to Twilio, Nexmo, Plivo, SignalWire or any SIP connection. Use our APIs to add and control your inbound and outbound voice and texting features in your existing tech stack in minutes, save on your cost of goods, connect to existing SIP providers, improve call delivery and quality, and more. Our cloud communications platform also makes it easy to buy and port phone numbers, create route profiles and trunks for outbound voice calls, enable text messaging, and more. Add call-specific analytics and SIP ladders along with our five-star support team to mitigate and route around outages, create custom routes and blocks, and more – and you've found a "better way" to communicate. Purchase phone numbers for inbound voice, route outbound domestic, toll-free, and international calls. Plus scale your text messaging communications with A2P SMS/MMS. Our Least Cost Routing (LCR) engine and database features – Location Routing Number (LRN), Caller Name (CNAM) and E911 – ensure that you're properly routing across our 40 high-quality carriers and paying the best price for every call.

Average Rating: 4.6/5.0

Total Reviews: 115

How Do G2 Users Rate Commio?

  • Has the product been a good partner in doing business?: 9.6/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.9/10 (Category avg: 8.8/10)
  • Professional Support: 8.9/10 (Category avg: 8.7/10)
  • Unified Communications: 8.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Commio?

  • Seller: Commio
  • Year Founded: 2009
  • HQ Location: Raleigh, NC
  • Twitter: @thinqing
    660 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    25 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: CEO, Owner
  • Top Industries: Telecommunications, Information Technology and Services
  • Company Size: 73% Small, 21% Medium

What Are Recent G2 Reviews of Commio?

What Are G2 Users Discussing About Commio?

EnableX

EnableX Programmable Cloud, a leader in omnichannel communications, enables brands to create meaningful customer engagement at scale—without the complexity of telecom infrastructure. Our carrier-grade platform seamlessly integrates voice, video, and text messaging into web, desktop, and mobile applications through developer-friendly APIs and SDKs, ensuring effortless connectivity across channels and platforms, including SMS, WhatsApp, RCS, Instagram, and Facebook Messenger. Beyond traditional communications, EnableX enhances customer interactions with AI-powered solutions like FaceAI which offers real-time facial and emotion recognition, and Text-to-Speech (TTS) for natural, emotion-aware customer interactions. These advanced capabilities drive intelligent automation, personalised engagement, and richer conversational experiences. Trusted by telecom operators, enterprises, service providers, and system integrators worldwide, EnableX offers transparent pricing, flexible deployment options (public, private, or on-premise), and white-label solutions that provide businesses with full control over their communication infrastructure. With EnableX, businesses can focus on what matters most: delivering seamless, intelligent, and engaging customer interactions with ease and efficiency.

Average Rating: 4.6/5.0

Total Reviews: 170

How Do G2 Users Rate EnableX?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.3/10 (Category avg: 8.8/10)
  • Professional Support: 9.3/10 (Category avg: 8.7/10)
  • Unified Communications: 9.2/10 (Category avg: 8.6/10)

Who Is the Company Behind EnableX?

  • Seller: VCLOUDX
  • Year Founded: 2017
  • HQ Location: Singapore
  • Twitter: @EnablexIo
    108 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    41 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 52% Small, 31% Medium

What Do G2 Reviewers Say About EnableX?

AI-generated summary from verified user reviews

Pros
  • Users find EnableX to be easy to use, enabling quick development and deployment of applications with low code.
  • Users enjoy the easy integration of EnableX, facilitating seamless video and SMS services effortlessly.
  • Users value the easy integrations of EnableX, appreciating the straightforward API and SDK setup for seamless functionality.
  • Users commend the high video quality of EnableX, enhancing their communication experience with clarity and ease.
  • Users appreciate the easy setup of EnableX, allowing quick integration and seamless operation for video applications.
Cons
  • Users find the documentation lacking, suggesting it needs better structure and clarity for easier implementation.
  • Users find EnableX lacking in integrations and features, making it less versatile for comprehensive needs.
  • Users feel there is limited customization in EnableX, impacting the flexibility of integrating additional features.
  • Users experience audio issues during low network conditions, affecting the overall quality of calls and recordings.
  • Users express a need for missing features, such as background effects, chat options, and better support improvements.

What Are Recent G2 Reviews of EnableX?

What Are G2 Users Discussing About EnableX?

Messangi

Messangi is a unified multichannel engagement platform designed to help enterprises, independent software vendors (ISVs), and business process outsourcing (BPO) companies connect their operational systems to the communication channels their customers prefer, including SMS, WhatsApp, RCS, Email, and Voice. This platform goes beyond traditional messaging solutions by treating communication as an integral part of business workflows rather than just a series of disconnected interactions. The product is particularly beneficial for organizations that require a comprehensive communications infrastructure. Messangi offers an API-first Communications Platform as a Service (CPaaS) tailored for developers, a No-Code Broadcast User Interface (UI) for operations teams, and a fully white-labeled multi-tenant platform for service providers looking to create their own branded engagement solutions. This versatility makes Messangi suitable for a wide range of industries, from telecommunications to customer service, where effective communication is crucial for operational success. One of the standout features of Messangi is its "Invisible Engine," which empowers BPOs and telecommunications companies to move away from reselling vendor-branded tools. Instead, they can utilize Messangi's white-label infrastructure to launch proprietary digital engagement platforms in a matter of days. This capability allows businesses to maintain control over their brand, client relationships, and profit margins, ultimately enhancing their market position. Messangi also addresses specific regional challenges, particularly in Latin America and the Caribbean, where it excels in solving the "last mile" problem that larger global companies often struggle with. The platform provides unmatched local route compliance, local billing, and hands-on WhatsApp Business onboarding, making it a valuable resource in high-friction markets. Additionally, Messangi facilitates workflow orchestration by allowing seamless transitions between AI-powered chatbots and live agents, as well as automating alerts and notifications directly from existing customer relationship management (CRM), enterprise resource planning (ERP), and billing systems. By consolidating their technology stack with Messangi, organizations can stop margin erosion caused by managing multiple disconnected messaging tools. The platform accelerates speed-to-market, enabling businesses to launch verified WhatsApp campaigns and create multi-tenant client environments significantly faster than traditional methods. Furthermore, Messangi helps companies scale without increasing headcount by deflecting tier-one support queries through integrated bots, allowing human resources to focus on high-value interactions. This combination of features positions Messangi as a comprehensive solution for modern communication challenges faced by enterprises today.

Average Rating: 4.7/5.0

Total Reviews: 15

How Do G2 Users Rate Messangi?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)
  • Ease Of Integration: 9.1/10 (Category avg: 8.8/10)
  • Professional Support: 9.8/10 (Category avg: 8.7/10)
  • Unified Communications: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Messangi?

  • Seller: Messangi
  • Company Website:
  • Year Founded: 2001
  • HQ Location: Miami, Florida
  • Twitter: @messangi
    792 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    55 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 56% Small, 44% Medium

What Do G2 Reviewers Say About Messangi?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Messangi, enabling streamlined communication and efficient customer engagement across multiple channels.
  • Users praise the responsive and knowledgeable customer support of Messangi, appreciating their timely assistance anytime.
  • Users value the easy integrations in Messangi, enhancing communication and streamlining customer engagement effectively.
  • Users appreciate the seamless integration of multiple communication channels in Messangi, enhancing customer engagement and efficiency.
  • Users love the personalized communication of Messangi, which enhances engagement and improves efficiency in reaching audiences.
Cons
  • Users find the reporting features challenging, wishing for improved granularity and direct dashboard insights.
  • Users find the complex setup of Messangi challenging, often requiring specialized expertise for integration with other software.
  • Users desire improved dashboard functionalities, seeking more detailed reporting features for easier data access.
  • Users find the difficult setup of Messangi challenging, often needing expert help for software integration.
  • Users note inadequate reporting features in Messangi, suggesting improvements for better data visibility and granularity.

What Are Recent G2 Reviews of Messangi?

VideoSDK

VideoSDK is developer infrastructure for real-time audio, video, and AI voice communication. Teams embed video calling, interactive live streaming, AI voice agents, and telephony directly inside their own applications instead of building and operating WebRTC infrastructure themselves. Cross-platform SDKs for JavaScript, React, React Native, Android, iOS, Flutter, Python, Unity, and C++, plus REST APIs and server SDKs for Node.js, Go, and Rust. Grab your API keys, drop in the SDK, and start building. PLATFORM CAPABILITIES Real-time Audio and Video SDK Adaptive, scalable calling with a prebuilt drop-in UI or a fully customizable UI in code. Screen sharing, whiteboard, pub/sub messaging, polls, reactions, and hand raise. Interactive Live Streaming SDK Low-latency interactive streaming with multiple hosts, promote and demote between speaker and viewer, HLS output with adaptive resolutions, and RTMP output to external platforms. AI Voice Agents Open-source Python agents SDK with 40+ plugins across speech-to-text, text-to-speech, LLMs, and realtime speech-to-speech models. Turn detection, interruption handling, memory, function calling, and warm transfer to a human with an LLM-generated briefing of the conversation so far. SIP Connect Bridge traditional telephony and phone systems into VideoSDK sessions. Works with Twilio, Vonage, Plivo, Telnyx, or a custom WebSocket, with inbound and outbound calling, DTMF, and call transfer. Real-time Transcription Live speech-to-text and captions, plus post-call transcription and AI-generated summaries. Cloud Recording and Storage Meeting-level and per-participant recording up to 1080p with programmable layouts, AES-256 encryption, and storage in VideoSDK Cloud, Azure Blob Storage, or your own bucket. Session Quality Analytics Session-level logs and quality visibility across every call, included at no cost. BUILT FOR SCALE AND RELIABILITY Mesh and SFU architecture with auto-scaling infrastructure. Network switch and interruption handling for users moving between networks mid-session. Media servers in India, the United States, UAE, Europe, and Singapore. Full API control over rooms, participants, recordings, and live streams. DEPLOYMENT OPTIONS VideoSDK supports several deployment models to meet different infrastructure, security, data residency, and operational requirements. Fully Managed. VideoSDK operates the infrastructure, deployment, scaling, and operations. Usage-based pricing. Hybrid. VideoSDK operates the real-time infrastructure while recordings and data are stored in your own storage account. Usage-based pricing with customer-owned storage. Customer-Hosted. VideoSDK is deployed inside your own cloud subscription, giving you control over deployment, networking, security, and data. Fixed infrastructure license fee with unlimited usage. AVAILABLE ON AWS MARKETPLACE AND MICROSOFT AZURE MARKETPLACE VideoSDK is listed on both AWS Marketplace and Microsoft Azure Marketplace, so teams already standardized on either cloud can procure through their existing account and billing relationship. USE CASES Video KYC and video banking: remote customer onboarding capturing face, ID document, and real-time liveness checks. Telehealth: virtual waiting rooms, doctor consultations, pre-call device diagnostics, and clinical recording. EdTech and live commerce: virtual classrooms with interactive whiteboards and screen sharing, and interactive live shopping stages. Regulated workloads: virtual claims, medical examination reports, and other workflows where the session itself is the record. SECURITY AND COMPLIANCE AES-256 encryption, end-to-end encryption, JWT authentication, role-based access control, and geofencing. Controls are aligned with SOC 2 Type II, ISO 27001, HIPAA, GDPR, and CERT-IN. A Business Associate Agreement is available for healthcare teams. Compliance packages and the BAA are offered as add-ons on Pay-As-You-Go and Enterprise plans. Enterprise adds a 99.99% uptime SLA, private cloud (VPC) deployment, a dedicated technical account manager, and 24/7 support over Slack, email, or phone. PRICING Usage-based and prepaid, with no minimums and no expiry on credits. Video is $0.004 per participant-minute and audio $0.001 per participant-minute. Cloud recording starts at $0.015 per minute, real-time transcription is $0.02 per minute, and AI agent sessions are $0.01 per minute. New accounts start with $20 in free credit. Start building with the free credit, or book a demo for Enterprise deployment and compliance requirements.

Average Rating: 4.6/5.0

Total Reviews: 13

How Do G2 Users Rate VideoSDK?

  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 9.0/10)
  • Ease Of Integration: 10.0/10 (Category avg: 8.8/10)
  • Professional Support: 10.0/10 (Category avg: 8.7/10)
  • Unified Communications: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind VideoSDK?

  • Seller: videosdk.live
  • Year Founded: 2020
  • HQ Location: San Francisco, US
  • Twitter: @video_sdk
    251 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    67 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 71% Small, 14% Medium

What Are Recent G2 Reviews of VideoSDK?

What Are G2 Users Discussing About VideoSDK?

Bird

Bird is a communications platform-as-a-service (CPaaS) company. At Bird we believe that communicating with a business should feel as natural as communicating with a friend. That’s why we are on a mission to modernize and simplify the overcomplicated space of customer communication. As the only leading cloud communications platform with its own telecommunications carrier infrastructure, over 15,000 global customers rely on Bird to solve their communication challenges. Our SMS, Voice and Conversations APIs continue to revolutionize company-customer interactions, making contact easier, more efficient, and more accessible than ever before. To power these operations, we have offices on 4 continents and a world-class team of over 20 different nationalities available around the clock to support you.

Average Rating: 3.9/5.0

Total Reviews: 69

How Do G2 Users Rate Bird?

  • Has the product been a good partner in doing business?: 7.6/10 (Category avg: 9.0/10)
  • Ease Of Integration: 6.6/10 (Category avg: 8.8/10)
  • Professional Support: 4.8/10 (Category avg: 8.7/10)
  • Unified Communications: 7.1/10 (Category avg: 8.6/10)

Who Is the Company Behind Bird?

  • Seller: Bird
  • HQ Location: Amsterdam, Netherlands
  • Twitter: @messagebird
    4,209 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    308 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 81% Small, 16% Medium

What Do G2 Reviewers Say About Bird?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use with Bird's modern and intuitive UI for efficient message management.
  • Users love the intuitive UI of Bird, enhancing WhatsApp inbox management in a modern and professional manner.
  • Users commend the modern and professional UI of Bird, enhancing WhatsApp inbox management with ease.
  • Users value the robust API of Bird for seamless custom integrations and effective WhatsApp Inbox management.
  • Users find that Bird's product enhances communication opportunities with customers, fostering better connections and interactions.
Cons
  • Users express frustration over poor customer support, highlighting issues with bugs and unresolved queries affecting their experience.
  • Users find Bird's services to be too expensive considering the lack of support and numerous technical issues.
  • Users report buggy features in Bird, causing frustration and hindering productivity due to unreliable support and documentation.
  • Users find the complex setup of Bird challenging due to numerous bugs and lack of effective support.
  • Users find the difficult setup of Bird frustrating, hindered by bugs and a lack of adequate support resources.

What Are Recent G2 Reviews of Bird?

What Are G2 Users Discussing About Bird?

Flowroute

Flowroute, the first software-centric carrier, provides communication services and technology for cloud-based products. Developers and businesses are given direct access to and control over their telephony resources such as phone numbers, inbound and outbound calls, SMS, MMS, and other related communication services through the Flowroute Manage Portal and our APIs. By providing businesses with programmatic access to communications infrastructure services, Flowroute removes the complexity of introducing new communications solutions to the market. The patented nationwide Flowroute HyperNetwork™ delivers leading carrier-quality calling and messaging services with unparalleled reliability, reach, and simplicity.

Average Rating: 3.8/5.0

Total Reviews: 14

How Do G2 Users Rate Flowroute?

  • Has the product been a good partner in doing business?: 7.7/10 (Category avg: 9.0/10)
  • Ease Of Integration: 6.5/10 (Category avg: 8.8/10)
  • Professional Support: 5.0/10 (Category avg: 8.7/10)
  • Unified Communications: 6.2/10 (Category avg: 8.6/10)

Who Is the Company Behind Flowroute?

  • Seller: Flowroute
  • Year Founded: 2007
  • HQ Location: New York, NY
  • Twitter: @flowroute
    2,531 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    19 employees on LinkedIn®
  • Phone: 855-356-9768

Who Uses This Product?

  • Company Size: 67% Small, 27% Medium

What Do G2 Reviewers Say About Flowroute?

AI-generated summary from verified user reviews

Cons
  • Users report significant call issues with Flowroute, citing network problems, call drops, and poor support experiences.
  • Users experience significant communication delays with FlowRoute, leading to frustrating support and porting processes.
  • Users report severe communication issues with Flowroute, particularly during the porting process and customer support interactions.
  • Users report frequent connectivity issues with Flowroute, causing frustrating call drops and poor customer support experiences.
  • Users report significant contact management issues with Flowroute, highlighting poor support and a frustrating porting process.

What Are Recent G2 Reviews of Flowroute?

What Are G2 Users Discussing About Flowroute?

Vidyo Platform

With VidyoPlatform, build your own video conferencing application with just a few lines of code. We provide a simplified, real-time video interaction for multiple deployment models including on-premises, private cloud, and hybrid. Our VidyoPlatform works across multiple platforms by providing developers with all the necessary infrastructure and support. We provide APIs and SDKs for web browsers, iOS, Android, macOS, and windows. It is ideal for all types of network environments; a key differentiation is that we offer the best video quality with the lowest latency globally.

Average Rating: 3.4/5.0

Total Reviews: 10

How Do G2 Users Rate Vidyo Platform?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.0/10)
  • Ease Of Integration: 5.0/10 (Category avg: 8.8/10)
  • Professional Support: 4.2/10 (Category avg: 8.7/10)
  • Unified Communications: 5.8/10 (Category avg: 8.6/10)

Who Is the Company Behind Vidyo Platform?

  • Seller: Enghouse Systems
  • Year Founded: 1984
  • HQ Location: Markham
  • Twitter: @EnghouseInterac
    2,418 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,284 employees on LinkedIn®
  • Ownership: ENGH (TSE)

Who Uses This Product?

  • Company Size: 50% Medium, 50% Small

What Are Recent G2 Reviews of Vidyo Platform?

What Are G2 Users Discussing About Vidyo Platform?

Knock

Knock is infrastructure for sending product and customer messaging. Ship cross-channel product notifications and lifecycle messaging that drives engagement, growth, and retention. Knock has everything you need to power notifications for your product, including: - A powerful workflow engine to automate and manage your entire cross-channel motion, from in-product messaging to email and push notifications. - Branded, in-product messaging components, including embeddable inboxes, feeds, and lifecycle messages. - Broadcasts make it easy to send effective, one-time messages to custom audiences. - A dynamic template manager for consistent, personalized cross-channel messaging. - End-to-end observability and analytics to monitor platform health and engagement. - Notification preferences give users control of where and when they receive notifications to increase retention. - Powerful integrations with dozens of tools across email, SMS, push, and chat.

Average Rating: 4.6/5.0

Total Reviews: 148

How Do G2 Users Rate Knock?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.0/10)

Who Is the Company Behind Knock?

  • Seller: Knock
  • Company Website:
  • Year Founded: 2021
  • HQ Location: New York, NY
  • Twitter: @knocklabs
    2,106 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    24 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, CTO
  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 72% Small, 21% Medium

What Do G2 Reviewers Say About Knock?

AI-generated summary from verified user reviews

Pros
  • Users find Knock's interface intuitive and easy to use, enhancing workflow design and notification implementation.
  • Users love the intuitive notifications system of Knock, which simplifies sending and managing alerts across various platforms.
  • Users appreciate the excellent customer support of Knock, highlighting fast response times and reliable assistance.
  • Users appreciate the easy setup of Knock, enabling quick integration and seamless experience for all team members.
  • Users highlight the easy integration of Knock, making it a developer-friendly choice with excellent support.
Cons
  • Users find the missing features of Knock, including replay capabilities and problematic email templates, frustrating.
  • Users find the insufficient features in Knock to be limiting, particularly with email templates and documentation clarity.
  • Users find the lack of clarity in Knock's data model and environment system challenging and counterproductive.
  • Users face notification issues with UI updates after commits, leading to confusion and delayed changes visibility.
  • Users find the difficult setup of Knock frustrating, especially with configuration tied to the UI and environment management.

What Are Recent G2 Reviews of Knock?

ShoutOUT

ShoutOUT is the all in one Customer Communication Platform working with over 300+ brands in 40+ countries with 3500+ users such as Sampath Bank, DSI Tyres, Mobil, Abans, etc. ShoutOUT Engage - It supports businesses to keep in touch with their customers by automated, personalized and targeted SMS and Emails. And go to the next level with WhatsApp Business API & Facebook Messenger integration with ShoutOUT. ShoutOUT Segment - It facilitates businesses to track customer actions in different channels and have a better understanding of consumer behaviors/patterns and the ShoutOUT rule engine helps to segment customers dynamically. Moreover, these segments can be synced with 3rd party applications like sales CRM, and target them on Facebook campaigns with custom and lookalike audiences, etc. Our Solutions -SMS & Email Marketing Platform -SMS API for Developers -OTP Platform -Messenger Integration & Chatbot Automation -WhatsApp Business API & Chatbot Automation -ShoutOUT Forms/Surveys -ShoutOUT SMS Polls For more information, visit our website: www.getshoutout.com or contact us via info@getshoutout.com

Average Rating: 4.9/5.0

Total Reviews: 15

How Do G2 Users Rate ShoutOUT?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.0/10)
  • Ease Of Integration: 8.3/10 (Category avg: 8.8/10)
  • Professional Support: 7.5/10 (Category avg: 8.7/10)
  • Unified Communications: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind ShoutOUT?

  • Seller: ShoutOUT Labs
  • Year Founded: 2016
  • HQ Location: N/A
  • Twitter: @ShoutOUTLabs
    69 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    21 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 76% Small, 12% Large

What Are Recent G2 Reviews of ShoutOUT?

What Are G2 Users Discussing About ShoutOUT?

Adam Crivello
AC
Researched and written by Adam Crivello
Updated March 31, 2026