Apps similar to Redpen include Mantis Bug Tracker, which is free and open source. Other options are Bugzilla and Marker.io. In total there are three Issue Tracking Systems like Redpen for self-hosting, Mac, Windows, Linux and the web.
Mantis Bug Tracker is a free and open source, web-based bug tracking system. It is written in the PHP scripting language and works with MySQL, MS SQL, and PostgreSQL databases and a webserver. MantisBT can be installed on Windows, Linux, Mac OS, OS/2, and others.
Bugzilla is a web-based tool for planning, organizing and releasing software on your own schedule. It is used by many open source companies and projects, and has advanced features such as search, milestones, and products.
United States
Create & annotate visual bug report tickets in your project management tool in seconds. Marker.io adds technical metadata & console logs for you, so developers can recreate & resolve faster. Developer-ready issues, even from non-technical reporters.
Belgium
EU
