
Description: Spotify-qt is an open source Spotify client for Linux that provides a native Qt interface. It aims to look and feel like the official Spotify app while being lightweight and customizable.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Psst is a lightweight, open-source messaging application focused on security and privacy. It uses end-to-end encryption to secure messages and has features like ephemeral messaging, screenshot prevention, and device verification.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API