When comparing Git Extensions vs Ungit, the Slant community recommends Git Extensions for most people. In the question“What are the best visual git GUIs?” Git Extensions is ranked 4th while Ungit is ranked 16th. The most important reason people chose Git Extensions is:
Developer focused and powerful options
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Comprehensive interface
Developer focused and powerful options
Pro No registration at all
Doesn't require registration to use.

Pro Free/libre
This application is FOSS, and thus it can be freely modified & distributed.

Pro Plugins
It comes with many plugins and you can build your own. Included by default are some very neat visualization tools for Repository metrics.
Pro Easy to add add action in the GUI
Right click to add a script to delete remote branch or tag...

Pro Free and Open Source Software
Ungit is open source software available under the MIT Licence.

Pro Cross-platform
Works on Windows, Linux, and OS X.
Pro Optional Integration with Modern Text Editors
Ungit can be integrated directly into modern text editors, Atom, Brackets, and VS Code.
Pro Web-based interface
Ungit is web-based, meaning you can run it on your cloud/pure shell machine and then use the UI from your browser.
Cons
Con Requires mono
Con Poor UI
Rich developer experience but awful interface.
Con Few plugins
A small selection of plugins.
Con Node.js dependent

Con Setup is not user-friendly
Ungit is distributed as an NPM package and requires git and Node.js to be installed on your system before you can run it. Ungit must be launched by running ungit
in a command line terminal.
Con Exposes git commands to your network
No authentication, if someone can communicate with your computer on the port this is running on, they can execute any git command they want on your repos as well as view your filesystem's folders.
