Preventing access for the same day without internet access



i was asked to add some sort of limitation in an app i am working on, which would prohibit the user to do the same interview set more then once a day.
I can of course check the current date and store it in a local data-object.
However the user can easily change the date on his device and the system would not work.

Is there some option without resorting to online-mesaures?



No. If you don’t trust the device owner, there is nothing you can do client-side.