Players can go to phone settings and look for the Beat Stomper app in there, then clear data and storage from the app in order to reset the progress on all achievements. The path to do so changes from phone to phone, but it hopefully should be simple enough to do. For android, for example, the general path is (phone settings -> apps -> beat stomper -> storage -> erase data). If you know the general path for iOS, please enter in contact with one of the moderators.

Most level categories require you to show that the achievement is locked and that there's no progress on it, so this provides a faster way to reset on those categories than uninstalling and reinstalling the game.

Warning: Doing this will reset the highest score display to 0.