Change difficulty in Profile → Settings → Difficulty.
Easy Mode is the default. It includes a one-hour Scroll Pass each week, and Aura can be removed normally.
Hard Mode removes the pass and early-unblock options. While a Hard Mode block is running, iOS will not delete Aura. Turning Hard Mode off requires a sustained press and hold. The app-removal restriction lifts after Hard Mode is off.
Start on Easy while you learn which apps to block and what reward rates fit your day. Move to Hard Mode when the earn-and-spend loop feels familiar. Changing to Hard Mode does not restore a Scroll Pass already used that week.