Anonymous3 Thanks for testing the app. Yea location permission is necessary as it includes access to the phones compass. Android does not distinguish between between raw compass and postional data. However, I can guarantee that your location won’t tracked or stored in any way. For more information you can also always check the privacy policy of the app.
Regarding the issue with glyphs not turning off: What Nothing phone model do you use? Glyphs might stay on when the app runs in the background. However, they should all turn off when the app is properly closed.