
Description: Tempest is a privacy-focused web browser that aims to protect user data and prevent tracking. It has built-in ad blocking, anti-fingerprinting technology, and a secure encrypted proxy to hide IP addresses.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Vivaldi is a free, open source web browser developed by Vivaldi Technologies. It is known for its high level of customizability and focus on privacy. Vivaldi has a clean, minimal interface and features like tab stacking, built-in note taking, and session snapshots for saving and restoring browser sessions.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API