Purchased on Play Store updated on F-Droid and lost access

mhm, seems not :slight_smile:

yes they will (thank god). What you store in a vault will be encrypted. does not matter if you unsinstall the app or not. Theres no automated decryption of a complete vault.

yes. You can open the same vault with any of the available cryptomator apps (desktop, mobile, 3rd party). Just add your existing (encrypted) vault again to the app and open it with your password.

If you want to exchange your playstore licence with a f-druid licence: see here (or write a PM to @SailReal by clicking the green envelope button in his profile.)