Over here most of the schools use this program called SIEPA. The software provides fleet management, notifications, flight training records, the possibility to upload documentation, Android and iOS integration, rostering, automatic duty time limitations for flight instructors, etc. It is also approved by AESA and the have a back up shedule for the whole system every 3h or so. With this software I think more than one ATO is now paperless, even though you can print everything out. I think they will offer you a demo for free, and will make an offer based on your needs and size (fleet and people). It is developed by EDASnet if I don’t remember bad.
I don’t have any affiliation with these people, I was the flight instructor that was asked to try and digitize our whole operations in my ATO.