I just had a glimpse of a wonderful future where GitHub releases a payments system, packaging options, and suddenly becomes an ideal app store ecosystem.
git clone
make clean; make installTwo examples off the top of my head:
Textual, an IRC client [1, 2]
Blink, a SIP client [3, 4]...this is pretty difficult to compile, though...
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[1] https://itunes.apple.com/us/app/textual/id403012667
[2] https://github.com/Codeux/Textual
[0]: https://itunes.apple.com/us/app/cyberduck/id409222199 [1]: http://cyberduck.ch [2]: https://trac.cyberduck.ch/browser
The benefit of it being open-source was that I could try it, use it, and hack it, before deciding they'd done a damn good job.