When oversleeping costs you actual cash, your brain stops treating the alarm as a suggestion. For chronic oversleepers who've tried everything, this is the fix that works. Every alarm app assumes a louder sound or harder puzzle will override your half-asleep brain. They won't. You'll solve the math with your eyes closed and crawl back into bed. The problem was never the alarm—it's that there's no real consequence for ignoring it. Tethered is the only app that puts your money on the line.