
Description: YAATA SMS is an open-source, ad-free SMS and MMS app for Android. It has a clean and intuitive interface, customizable themes, schedule messages, private box to hide conversations, blocking, archives, quick reply, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Simple SMS Messenger is a free, ad-supported SMS text messaging app for Android. It provides basic SMS/MMS functionality for sending messages to contacts, group messaging, emoji support and more. The app has a simple, intuitive interface.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API