We're using retool to MVP a product, and a component of it is a mobile app that I think would be very nice if we could put into "kiosk mode" so that random people can interact with it. Right now, even if you have the app itself in kiosk mode, i think you can still do destructive things like click the hamburger menu and delete the account. (or log out, or switch to another app, etc.)
(I haven't tested this on ios yet, so apologies if it's just not implemented on android)