The SAU App for iPhone and iPad supports:
  • iPhone 6 and above
  • iOS 14 and above
You can check your iOS version in the Settings app > General > About
SAU app for Apple Mac computers supports macOS version 10.15 and newer.
To check your computer's system version, click (upper left corner) > About This Mac
The SAU app for Apple Watch works on devices with WatchOS version 6.2 and above.
You can check your version in the Settings app > General > About