
Description: Atomic SMS Sender is a software tool for sending SMS messages in bulk. It allows users to upload contact lists and send messages to multiple recipients at once through either a connected phone/modem or via an SMS gateway service.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Clickatell is a cloud-based messaging platform that enables businesses to send and receive SMS, chat, email, push notifications and voice messages through APIs. It provides reliable and scalable SMS infrastructure to carry high SMS volumes.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API