
Description: Inboxer is an email client focused on simplicity and efficiency. It has a clean, minimalist interface allowing users to quickly process their inbox. Key features include customizable filters and rules, read receipts, scheduling/snoozing emails, and integration with other popular apps.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Inout Webmail is a free, open-source webmail client that can be self-hosted. It has a simple, easy-to-use interface, supports multiple email accounts, contacts, calendar, and more. Good alternative for those looking to host their own webmail service.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API