TortoiseSVN - The coolest interface to (Sub)version control
Pisth - Pisth is an open source SSH and SFTP client for iOS.
SnailSVN - Similar to Tortoise SVN for Windows but integrated into Finder
Prompt 2 by Panic - The best SSH client for iOS
Xversion - Super easy enterprise class version control.
Termix - Modern and easy to use ssh client for macOS and Windows