Thats a good point! I only added a lock on the button that says "Click Me" and not the others - something I can tweak in an update :)

I am really happy you like the app!! The only issue with tapping on the outside of the phone would be how the phone could detect it (not sure if the gyroscope or something could be accurate enough). Someone had suggested volume buttons so maybe that is an option to explore.

Thank you for your feedback though and for sharing it! I appreciate it! :)