Comparison

StopBite vs Monyx

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StopBite

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Nail biting is a tough habit to break. As the developer of this app, I struggled with it since childhood. I created this app out of a strong desire to finally stop, and I would be thrilled if it could help others facing the same struggle! This app is a habit tracker designed to visualize your unconscious habits and fully support your determination to quit. ■ Key Features - Nail Growth Record & Flip-book (*Pro feature) Take perfectly aligned photos every time using the "Ghost Overlay." Reviewing your daily changes through animation will dramatically boost your motivation. - In-depth Habit Analysis (Emotion Tracker) Record exactly when and what you were feeling (frustrated, anxious, etc.) when you bit your nails. Visualize your unconscious triggers with easy-to-read graphs. - "Commitment Tips" for Resolve It's okay if you slip up. Turn your regret into a "Commitment Tip" (a virtual record) to act as a deterrent and restart with renewed determination. - Visualize Your Effort: "Grow & Reward" The longer you go without biting, the more your in-app plant grows. Once you reach your goal, treat yourself with a custom "Reward" you set! Breaking a habit alone is hard, but together with this app, you can overcome it. Why not take the first step today? Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Monyx

Features
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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

StopBite4 screens
Monyx4 screens

Verdict

The call

The clearest difference is update cadence: Monyx at weekly against StopBite's every 3 weeks. On price, ads, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StopBite sells 4 one-off in-app purchases 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.

UpkeepUpdate frequency

StopBite ships an update every 3 weeks, Monyx weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 5 level
StopBite versus Monyx: the parameters behind the verdict, then further details
ParameterStopBiteMonyx
PriceFreeFree
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17.017.0
Further details — not scored
Size13 MB5 MB
Age rating4+12+
DeveloperJUNICHI WATANABELUC BRUNNARIUS

In-app purchases

4 purchases

StopBite

One-time4
  • Regret Tip (Small)$0.99
  • Regret Tip (Medium)$1.99
  • Pro Plan(Lifetime)$1.99
Show 1 more
  • Regret Tip (Large)$2.99
2 purchases

Monyx

Subscriptions2
  • Monyx Premium Mensuel$4.991 Month
  • Monyx Premium Annuel$34.991 Year

Questions

Is StopBite free?
StopBite is free to download, with in-app purchases available.
Is Monyx free?
Monyx is free to download, with in-app purchases available.
Do StopBite or Monyx have ads?
Neither StopBite nor Monyx shows ads.
Which is updated more often, StopBite or Monyx?
StopBite ships an update every 3 weeks, and Monyx weekly. Most recently, StopBite was updated on October 6, 2026 and Monyx on October 16, 2026.

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