NailBite vs Monyx
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NailBite
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NailBite is a simple habit tracker for the moment you catch yourself biting your nails. Log it with one tap, watch your bite-free streak grow, and learn what triggers the habit — no subscription, no account, no clutter. Made for you if you want to: - Stop nail biting and grow healthy nails again - Understand when and why the urge shows up - Break a long-standing habit with small, kind steps - Use a lightweight tracker without a subscription LOG — One tap in the moment Tap "I bit my nails" and it's saved instantly, with a gentle haptic confirmation. Right after logging, you can optionally tag the trigger — Stress, Boredom, Screen time, and more. INSIGHTS — See the pattern, change the habit - Bite-free streak and your best streak ever - Today, 7-day, and all-time counts - Weekly and 30-day frequency charts - Trigger breakdown that reveals your risky situations - Full history you can review and delete REMINDER — Make reflection a routine Get a daily notification at the time you choose. Turn it on or off anytime in Settings. WHY IT'S EASY TO STICK WITH - No sign-up, no login — start in seconds - Your records stay on your device - English and Japanese, light and dark mode - A short first-launch tutorial gets you started NailBite is not a medical app. It does not provide diagnosis, treatment, or medical advice. It is a self-care tool for tracking and reflecting on a daily habit such as nail biting (onychophagia) or related BFRBs. If your symptoms are severe, please consult a professional. Purchase: NailBite Pro is a one-time in-app purchase that removes ads. It is not a subscription. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Monyx
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You don't bite your nails because you lack willpower. You bite them because your hand moves on its own. 92% of nail biters say they never see the gesture coming. That's the whole problem, and it's why deciding to stop has never been enough. Monyx works on the gesture itself: noticing it, logging it, replacing it. THE DAILY PACT Every morning, sign your pact by holding your finger down for three seconds. Every evening, answer “Pact kept” right from the notification, and your day is confirmed. Your calendar fills up, kept days link into a streak, and 19 badges mark your milestones. THE METHOD 21 days of Habit Reversal Training, the behavioral method with the most evidence behind it. One lesson a day, one minute each, one exercise to try before evening. Each day unlocks once you've done the one before. Week 1, see the gesture. Week 2, replace it. Week 3, lock it in. TWO TAPS ON THE BACK OF YOUR IPHONE The urge rises. Two taps on the back of your phone and it's logged, without opening the app, without taking your eyes off what you were doing. That's the whole point: a log that costs nothing is a log you actually keep. After a few days, the Progress tab shows what you couldn't see. Your urges cluster around two or three situations, not everywhere. You stop fighting all day and start defending a few precise moments. YOUR NAILS, IN PHOTOS One photo a week, always framed the same way, with an alignment overlay so the comparison holds. A nail grows about 0.1 mm a day. It won't show tomorrow. In two months the difference jumps out at you. WHEN THE URGE HITS Make a fist and follow a guided breath: 4-7-8, in for 4 seconds, hold for 7, out for 8, or 5 minutes of coherent breathing. Almost every urge passes in under two minutes, whether you bite or not. Every wave you ride out teaches your brain that it ends without going through your mouth. AND IF YOU SLIP One bad evening costs a few days on one finger. The spiral that follows costs months on ten. Monyx logs the slip as a data point, not a verdict, and asks what set it off. The people who make it aren't the ones who never slip. They're the ones who start again within 24 hours. Monyx is also for people who pick or peel the skin around their nails instead of biting. The app asks at the start and adapts your tracking. YOUR DATA STAYS ON YOUR IPHONE No account, no email, no password. Everything you log stays on your device and syncs only to your own iCloud, if you've turned it on. No analytics, no advertising, no third parties. You can erase everything from the app, for good, in two taps. Monyx is not a medical device and does not replace a healthcare professional. FREE The daily pact, your calendar and badges, the card of the day, your streak, unlimited logging, your millimeters of growth, and one photo a week. WITH PREMIUM The full 21-day program, your trigger analysis, one photo a day and the emergency Breathe button. Try the yearly plan free for 3 days, or go monthly. Cancel anytime in your iPhone settings. A question, an idea, a bug: hello@getmonyx.app, we always reply. Terms of Use: https://getmonyx.app/terms.html Privacy Policy: https://getmonyx.app/privacy.html
Screenshots
Verdict
The clearest difference is ads: Monyx at none against NailBite's shown. On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. NailBite sells 1 one-off in-app purchase and Monyx sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
NailBite ships an update every 5 days, Monyx weekly. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.
| Parameter | NailBite | Monyx |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 12+ |
| Developer | BYNET | LUC BRUNNARIUS |
In-app purchases
NailBite
- NailBite Pro$4.99
Monyx
- Monyx Premium Mensuel$4.991 Month
- Monyx Premium Annuel$34.991 Year







