When comparing SublimeGit (via Sublime Text) vs GitUp, the Slant community recommends GitUp for most people. In the question“What are the best Git clients for macOS?” GitUp is ranked 8th while SublimeGit (via Sublime Text) is ranked 21st.
Ranked in these QuestionsQuestion Ranking
Pro Better visualization and interactive workflow
Diffing from the selected file
Pro Uninterrupted workflow for common tasks
Simple tasks, such as commits, can quickly be made without leaving the editor.
Pro Quick-commit encourages smaller commits/committing more regularly
Pro Open Source, GPL-licensed
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 Blazing fast
Fast Git GUI. Everything is already there and loaded when you open up the window.
Con You have to be using Sublime to use this
Since it's a Sublime Text plugin, you have to be using Sublime as a text editor to make use of this in its full potential.
Con Git Pull doesn't work in ST3 on Yosemite
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.