
Description: SIGAINT is an email service launched in 2014 that offered encrypted and anonymous email accounts. It was known for its privacy features and for being used by activists and journalists to protect communications.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OnionMail is an email service that provides end-to-end encryption and anonymity by routing emails through the Tor network. It allows users to register an email address ending in .onion that can only be accessed over Tor.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API