Android Key Lock

I paid for the android version of the djay 2 app once again after I switched phones (was on iPhone) and was upset when I saw it. I would love a Key Lock for android and there is no excuse why it cannot be implemented. If my old iPhone 5s can run it (and that’s a 6 year old device), then my last year’s Oneplus 6T can as well. PLEASE add this. Makes learning songs on the guitar way easier as I then do not have to keep retuning my guitar to fit different songs. FIX THIS PLEASE!