The Smart Flow App can't maintain the proper working process on the device with an outdated iOS system. As Apple is constantly improving through their new versions, our App should also be up to date so you can enjoy it's maximum potential. Upgrading to the latest version of iOS software provides the latest features, security updates, and BUG fixes.
The Smart Flow App supports all iOS versions starting from 10 and up, any previous iOS versions will work incorrectly, so it's crucial to update your device by following the instructions described in How to update iOS on iPad?. Please find out how to check iOS version on your device HERE.
We hope you found this information useful!