StopBite vs NailFree
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
NailFree
This app helps you break the nail-biting habit using proven behavioral therapy. It builds awareness of triggers and guides you to replace the urge with a positive action, supported by science and tracking tools.
- Habit Reversal Training (HRT)
- Personalized identity work
- 60-second urge interception
- Daily science facts
- Streak tracking with milestones
- Progress photos
- Apple Watch app integration
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NailFree uses proven Habit Reversal Training (HRT) — the same behavioral therapy used by therapists — to help you stop biting your nails for good. Most nail-biting apps only track streaks. NailFree changes your behavior. HRT works by building awareness of when and why you bite, then replacing the habit with a competing response before it starts. Clinical studies show a 90%+ success rate. WHAT MAKES NAILFREE DIFFERENT • Evidence-based approach: HRT is the gold standard treatment for body-focused repetitive behaviors • Personalized identity work: shift how you see yourself, not just what you do • 60-second urge interception: tap a button when an urge hits and follow a quick competing response — each time you resist, your brain rewires • Daily science: short facts about nail growth and habit formation to keep motivation grounded • Streak tracking with milestones: visual ring progress, milestone unlocks, and grace days so one slip doesn't erase your work • Nail defense tracker: log when you file and apply bitter polish — the two physical barriers shown to reduce biting • Progress photos: weekly nail photos help you see the growth and keep you motivated • Apple Watch app: check your streak, tap "Caught It" the moment awareness hits, and get haptic check-in reminders throughout the day — all from your wrist BUILT ON REAL SCIENCE Habit Reversal Training was developed by psychologists and validated in peer-reviewed studies as one of the most effective treatments for nail biting and similar habits. Nail biting affects 1 in 4 adults. Most know they do it. Few know how to stop. NailFree gives you the tools that actually work.
Screenshots
Verdict
StopBite and NailFree are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. StopBite sells 4 one-off in-app purchases and NailFree sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.
| Parameter | StopBite | NailFree |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 13 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | JUNICHI WATANABE | Jason Culbertson |
In-app purchases
StopBite
- Regret Tip (Small)$0.99
- Regret Tip (Medium)$1.99
- Pro Plan(Lifetime)$1.99
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- Regret Tip (Large)$2.99
NailFree
- NailFree Pro7 Days trial$4.991 Month
- NailFree Pro Annual7 Days trial$29.991 Year









