
Description: Zoho Mail is a free, ad-supported email service that provides enterprise-level features for individuals and businesses. It offers unlimited storage, POP and IMAP access, mail forwarding, shared calendars, docs and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Polymail is an email client app focused on privacy and security. It offers end-to-end encryption, screen blurring, read receipts control, and other features to protect user data and communications.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API