# NailFree — Stop nail biting for good > Behavioral therapy app to stop nail biting through awareness and habit replacement. (iPhone/iPad app by Jason CULBERTSON.) - Source: https://appshunter.io/ios/app/nailfree/id6761150154 (this page in markdown: same URL + `.md`) - Developer: [Jason CULBERTSON](https://appshunter.io/developer/993459262) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 17.0 · 3 MB - Languages: English - Released: 2026-04-01 - Data updated: 2026-07-08 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/nailfree/id6761150154/reviews.md ## What is NailFree? 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. ## Key features - Habit Reversal Training (HRT) - Personalized identity work - 60-second urge interception - Daily science facts - Streak tracking with milestones - Progress photos - Apple Watch app integration ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | NailFree Pro | $4.99 | per month | | NailFree Pro Annual | $29.99 | per year | ## Frequently asked questions about NailFree ### What is NailFree? NailFree is a health and fitness app designed to help users stop biting their nails. It utilizes Habit Reversal Training (HRT), a scientifically proven behavioral therapy. ### How does NailFree work? NailFree builds awareness of when and why you bite your nails, then guides you to replace the habit with a competing response. This process helps to rewire your brain and break the cycle of nail biting. ### What makes NailFree different from other apps? Unlike apps that only track streaks, NailFree focuses on changing your behavior through evidence-based HRT. It also includes personalized identity work and a 60-second urge interception feature. ### Does NailFree have ads? No, NailFree does not contain advertisements. It is a completely ad-free experience for users focused on breaking their habit. ### What are the subscription options for NailFree Pro? NailFree Pro offers two subscription plans: a monthly plan for $4.99 and an annual plan for $29.99. Both plans include a 7-day free trial. ### Can I use NailFree on my Apple Watch? Yes, NailFree has an Apple Watch app that allows you to check your streak, log urges, and receive haptic check-in reminders directly from your wrist. ### How often is NailFree updated? The latest version of NailFree is 1.4, and it was last updated on May 23, 2026. This indicates a commitment to ongoing development and improvements. ### What is the success rate of Habit Reversal Training used by NailFree? Clinical studies have shown that Habit Reversal Training, the method employed by NailFree, has a success rate of over 90% for stopping nail biting. ## Version history (last 4 releases) ### 1.4 — 2026-05-23 • Apple Watch app: Track urges and log nail-biting directly from your wrist • Bug fixes and performance improvements ### 1.3 — 2026-04-27 Bug fixes and improvements. • Fixed display issues when using dark mode — the app now consistently uses its own color scheme regardless of system settings • Onboarding now requires each step to be completed before continuing • Fixed header text colors on Log, Program, and Progress screens ### 1.01 — 2026-04-05 App now always displays in light mode. ### 1.0 — 2026-04-02 No release notes. ## More apps by Jason CULBERTSON - [Debt Pulse](https://appshunter.io/ios/app/debt-pulse/id6761400843) All apps by Jason CULBERTSON: https://appshunter.io/developer/993459262 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*