Google recently updated its mobile apps and finally introduced all the collaboration features on iOS. Google Docs
Dan Seifert (The Verge) writes a great article on how this update enables him to use his iPad at work.
…Google finally released full support for Suggested Edits in the mobile Docs apps. With this update, I can now read, approve, reject, and even add edit suggestions to a Docs file, all from my iPad Pro and Smart Keyboard. I can now say that I can do the majority of my job with my iPad and I don’t necessarily need a laptop anymore.