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

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

Total Products under this Category: 218

Category Stats (Sep 2026)

  • Average Rating: 4.48/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Mobile Message (+1.74%) - Among all products in this category, Mobile Message recorded the largest rating increase compared to last month

Last updated: September 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
  • 9,200+ Authentic Reviews
  • 218+ 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, Wati, Webex Connect, Signal House, Telnyx CPaaS, MSG91, 360Dialog, 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=wati&focus%5B%5D=webex-connect&focus%5B%5D=signal-house&focus%5B%5D=telnyx-cpaas&focus%5B%5D=msg91&focus%5B%5D=360dialog&focus%5B%5D=vonage-communications-apis)

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
    2,776 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?

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: 4.3/5.0

Total Reviews: 57

How Do G2 Users Rate Infobip?

  • Has the product been a good partner in doing business?: 8.6/10 (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: 44% Medium, 37% 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?

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: 458

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: 6.7/10 (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?