When comparing Sublimerge vs GitAhead, the Slant community recommends Sublimerge for most people. In the question“What are the best GUI Git clients for Mac?” Sublimerge is ranked 7th while GitAhead is ranked 12th.
Ranked in these QuestionsQuestion Ranking
Pro Three-way diff allows easy merging of files
i recommend Sublimerge
Pro Highlights intraline changes
Pro Built-in support for Git, Subversion and Mercurial commands
Sublimerge automatically integrates with your version control history, and lets you compare between revisions, branches, remotes, and the staging area.
Pro Can compare to clipboard contents
Windows, macOS, and Linux.
Pro All basic Git features included
Branches, Pull, Push, Fetch, Cherry-pick, Stash, Revert, Rebase...
Pro It is now free and open source
No longer requires an account.
Pro Can link to most used git cloud providers
Link to gitlab, github and bitbucket accounts.
This means it is fast, looks great on and platform and integrates especially well with KDE.
Pro Fastest on Linux
Not based on web technologies and fastest to start and work with, yet featuring all required features.
Pro Designed to support repository exploration
Con It's NOT Open Source
You can't fix or, implement nothing. And when the developer abandons the project you will be left in the lurch.
Con It's not free
Nither as free price nor as free in freedom.
Con Cannot compare text within the same file
Sublimerge can only compare entire file diffs, but not two selections within a file. Comparing within files can be useful for example, by refactoring two similar functions to use a shared function. With Sublimerge, you need to copy the sections into two new temporary tabs and compare between the two. This can be cumbersome, as if you have another untitled file, you won't be able to know which one is which.