When comparing Zammad vs YouTrack, the Slant community recommends YouTrack for most people. In the question“What are the best free bug-tracking tools for programming? ” YouTrack is ranked 14th while Zammad is ranked 17th.
Ranked in these QuestionsQuestion Ranking
Pro GitHub and Gitlab integrations
Pro Free and open source
The app is built with Rails and is freely available to download and install on any server that supports Ruby web applications.
Pro REST API
Pro Mobile apps
Mobile apps for iOS and Android.
Pro Image editor
Built in image editor.
Pro State-machine workflows
Pro Migration options
Lots of migration options, e.g. from Jira.
Pro Zendesk integration
Can be integrated with Zendesk.
Pro Gantt chart
Gant chart provides an overview of your projects in time.
Con No extensions (yet)
The app is fully featured but as it's a relatively new player, there isn't a plugin/extension system as of yet.