Stopped working – iDiscrete Review

I have never had a problem w this app EVER.. with the latest IOS update 13.4.1 it has stopped accepting my passcode and my notes screen ‘hint’ is no longer there.. (I put the answer in but still doesn’t work). I have never paid for this app & in the help sections I am finding that’s it’s no longer free.. HELP???!!!
Review by SLGnGA on iDiscrete.