
Description: MailCatcher is a simple, open source email testing tool for developers. It runs a local SMTP server to catch emails sent from web apps during development, allowing developers to preview them in a web interface instead of sending them externally.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: MailDev is an email testing and debugging tool for developers. It allows you to intercept, view, and manipulate emails sent from your local development environment without actually sending them over the internet. Useful for testing email functionality in web apps.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API