Smartphone users can now simply tap on the line of code that they want to comment on. That will let them start or add to a discussion in a pull request or a commit (pull requests and commits show changes to a single coding project). Before the update, people on phones could look at code, but had to switch to the desktop version of the site in order to add comments.
GitHub officially launched a mobile-optimized website in July 2013. The GitHub team reasoned in a blog post that they often clicked through to GitHub repositories through Facebook, Twitter, or email apps, so it made more sense to mobile-optimize the existing website rather than build a native app.
No official iOS app exists, third-party developers have been filling the void by creating GitHub clients on their own. A host of free and paid third-party GitHub clients have cropped up for iOS, including CodeHub, NapCat, and SuitHub.
Image by Dave Fayram.