TortoiseSVN - The coolest interface to (Sub)version control
Pisth - Pisth is an open source SSH and SFTP client for iOS.
Xversion - Super easy enterprise class version control.
Prompt 2 by Panic - The best SSH client for iOS
RapidSVN - CollabNet, Facilitating Collaborative Software Development
Dataplicity - Dataplicity is a remote terminal for your Pi.