When comparing GitAtomic vs GitUp, the Slant community recommends GitAtomic for most people. In the question“What are the best Git clients for Windows?” GitAtomic is ranked 14th while GitUp is ranked 24th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Very fast and intuitive
Pro A Beta version is available for free
While the regular client costs $46.95, you can get a free Beta version.
Pro Blazing fast
Fast Git GUI. Everything is already there and loaded when you open up the window.
Pro Allows doing complex things without memorizing git
Git usage beyond basic checkout/commit is arcane; GitUp lets you do things in git in seconds that would take you a half hour of research with the command line.
Pro Full undo
You can backup, or edit commits, if you make a mistake.
Pro Open Source, GPL-licensed
Cons
Con OS X Only
Only available for OSX, so if you are used to working with different OSes and you want the same tools in each of them, it's impossible to have that with GitUp.
Con Font size is not adjustable
Tiny font not good for those with poor vision.