Robin lets you ship superior in-app messaging experience without having to do the tedious work. Building 1-1 / group messaging can get complex, we have done the hard work so you never have to.
Twilio is a web-service API that lets you use your existing web languages and skills to build voice and SMS applications. We focus on building a simple, powerful, pay-as-you-go communications platform so that you can focus on what you do best.
With Stream’s chat react components, SDKs, and UI kits, product teams can unleash chat on web, or as a mobile app, with just a few lines of code. Maximize development bandwidth with Stream’s flexible backend messaging API and front-end components.
MessageBird is a cloud communications platform that connects over 15,000 enterprises to their global customers via the fastest and most reliable SMS, Voice and Chat APIs in the world.
Plivo is a voice and SMS API platform that enables developers and enterprises to build powerful apps with great features. With 24/7 free tech support and low prices, Plivo can help your business scale globally.