
Description: Prefer is an open-source, cross-platform note taking and to-do app with markdown support. It has a clean and intuitive interface allowing easy organization of notes and tasks.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Cohort is an open-source analytics tool for product managers to analyze user behavior. It lets you create user cohorts based on events and attributes to measure engagement, retention, and funnel conversion over time.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API