When comparing Fossil vs YouTrack, the Slant community recommends Fossil for most people. In the question“What are the best bug/issue tracking tools for small development teams?” Fossil is ranked 10th while YouTrack is ranked 14th. The most important reason people chose Fossil is:
If you need a (distrubuted) SCM, Fossil comes with a built-in SCM, a wiki and issue tracker.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro DSCM + issue tracker + wiki
If you need a (distrubuted) SCM, Fossil comes with a built-in SCM, a wiki and issue tracker.
Pro Self-contained file
The data is stored in one single file. No file structure distributed over a bunch of folders.
Pro Multi platform
The executable is provided for multiple platforms, e.g. Linux, macOS, Windows.
Pro Easy to install
The Fossil application contains one single file. No need to install dependencies.
Pro REST API
Pro Scrum
Pro Mobile apps
Mobile apps for iOS and Android.
Pro Kanban
Kanban boards.
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.
Cons
Con Ticket comments can't be edited
While a ticket can have multiple comments added to it, and (separately) also attachments — if the users have the right permissions — it is impossible to edit a comment after submitting it. This is probably why a comment must be previewed before it can be submitted.