
Description: Inbox Grader is an email management tool that analyzes your email inbox to give you personalized feedback and coaching on how to improve your email productivity. It helps reduce inbox clutter and stress.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: InstAddr is an open-source alternative to MailChimp for email marketing campaigns. It provides easy tools for building email lists, designing campaign templates, and tracking engagement.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API