
Description: Twilio is a cloud communications platform that enables developers to programmatically make and receive phone calls, send and receive text messages, and perform other communication functions using its web service APIs.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Bandwidth is a communications platform that enables developers to easily integrate voice, messaging, 911 access, and phone numbers into software applications. It provides APIs and network infrastructure for building and scaling communications into apps and websites.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API