One stamp a day
Once a day, one question. Answer “Not today” and the day gets its stamp. Watch your month fill up, with your streak, your best run and the money you’ve kept.
iPhone & iPad · Health & Fitness
Undo
Quit anything. Privately.
Undo helps you leave a habit behind, one day at a time: vaping or smoking, drinking, weed, gambling, gaming, sugar, doom scrolling, porn, or something that’s yours to name. No account, no feed, no judgement.
A closer look.
The Undo App Store screenshots, as they appear on the store.
What it does.
Ride out every urge
Tap “I have an urge” and a calm space opens: breathe with the circle, or try something else for the few minutes it takes. One tap records that you beat it.
A sticker book
Collect 50 die-cut stickers, holo, glossy and matte, for the days you bank, the urges you ride out, the money you keep and small quests.
A slip isn’t the end
Log it honestly and start again. The days you’ve banked stay yours, and you’ll see what set it off so the next urge is easier.
Know your patterns
See when urges tend to hit and what sets them off, with your full urge history, free. Track up to three habits, each with its own count.
Someone in your corner
Optionally pair with one person you trust. They see one counter and your daily check-in over iCloud, never your urge log or other habits.
Private by design
- No account to make and nothing to sign in to. Your log stays on your phone.
- Hidden habits and discreet mode keep names and colours neutral on widgets and notifications.
- Lock Undo with Face ID or your passcode, and switch to a discreet app icon for free.
What it costs
Undo is free, with a few ads from Google that never see your habits or your log, and never appear while you ride out an urge, check in or log a slip.
Undo Plus removes every ad and adds unlimited habits, a weekly recap and a heads-up at your riskiest hour: a subscription, or a one-time purchase for life.
Undo is a general wellness app, not medical advice. Stopping some substances suddenly, alcohol among them, can be dangerous: if you use every day, talk to a doctor before you stop. In the app, Get help now puts free, confidential helplines one tap away.
Details.
- Price
- Free · Undo Plus
- Requires
- iOS 18.0 or later
- Works on
- iPhone & iPad
- Size
- 25 MB
- Languages
- English
- Category
- Health & Fitness
- Version
- 3.0 · 21 October 2026
- Developer
- The Solana Labs
Get Undo
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