What you don't buy, you keep.
Nought is a no spend challenge tracker for iPhone. You decide what an ordinary spending day costs you, pick how long you're going and what you're saving for, then answer one question a day: did you spend, or didn't you.
Clean days bank the money toward your reward. A small pool of streak saves absorbs the days you slip. That's the whole app.
One active challenge. The full daily loop, nothing held back.
A one-time unlock. Run several challenges at once, add Home and Lock Screen widgets, keep your history, and sync across your devices with iCloud.
Nought has no account, no server and no analytics. Everything you log lives on your iPhone, and syncs only through your own iCloud if you turn that on. Nothing is sent to us.