
Description: pretix is an open source ticketing and event management platform designed for all kinds of events ranging from small talks and meetups to large conferences. It provides an easy way to handle registrations, ticket sales, invoices, check-ins and more for events of any size.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Confetti is a free, open-source email application for Windows, macOS and Linux. It has a clean, minimalist interface and supports common email features like IMAP/POP3, contacts, calendars and tasks.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API