
Description: Boomerang Mail is an email productivity plugin and service that allows users to schedule emails to be sent at a later time or date. It also offers features like email reminders, templates, and read receipts.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Gmelius is a Gmail plugin that aims to enhance productivity and customize the Gmail interface. It provides features like templates, signatures, reminders, follow-ups and integrations with other apps.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API