SmartBehavior vs NailFree
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
SmartBehavior
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SmartBehavior โ Break free from unconscious habits Do you struggle with nail biting, skin picking, or touching your face without noticing? SmartBehavior helps you regain control. With advanced AI, SmartBehavior detects when your hand moves toward your face and alerts you in real time. This simple feedback makes you aware of unconscious behaviors โ and gives you the chance to stop them before they happen. Key Features: Real-time detection: AI alerts you instantly when your hand touches your face Progress tracking: visualize improvements and stay motivated Custom alerts: choose sound or vibration notifications that fit your lifestyle Discreet and simple: runs in the background, works anytime you need it Whether you want to stop nail biting, skin picking, or other body-focused repetitive behaviors (BFRB), SmartBehavior gives you a powerful tool to build healthier habits step by step.
NailFree
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Stop biting your nails; for real this time. NailFree is the first habit tracker built specifically for nail biters. Whether you've been biting for a few months or your whole life, NailFree gives you the tools, tracking, and motivation to finally break free. HOW IT WORKS Every time you feel the urge to bite, tap "I resisted" to log your win. If you slip, tap "I bit." There is no judgment, just data. NailFree tracks your patterns so you can understand your triggers and take control. Take a daily photo of your nails and watch your transformation unfold. The before-and-after comparison slider shows you exactly how far you've come, even when it doesn't feel like progress. FEATURES Streak Counter: See how many days you've gone bite-free. Your streak is your motivation. Bite & Urge Logging: Track every urge you resist and every slip. See which fingers, what triggers, and how intense they are. Daily Photo Diary: Take one photo a day. Watch your nails heal and grow over time. Before & After Comparison: Slide between your Day 0 photo and your latest. Share your progress with friends. Smart Charts: See your bites and resisted urges over 7 or 30 days. Watch the trend go in the right direction. Trigger Tracking: Discover if stress, boredom, anxiety, or habit drives your biting. Knowledge is power. Daily Tips: Science-backed strategies from behavioral therapy to help you resist urges and build new habits. Personalized Insights: Based on your patterns, NailFree identifies your biggest triggers and when you're most at risk. Milestone Celebrations: Hit 1 day, 3 days, 7 days, 14 days, 30 days, 60 days, and 90 days. Every milestone matters. WHY NAILFREE WORKS Most people try to quit nail biting with willpower alone. Research shows that tracking your habit makes you 3x more likely to succeed. NailFree combines visual progress through photos, behavioral awareness via trigger tracking, and positive reinforcement with streaks and milestones into one simple daily routine. 94% of people who track their nail biting reduce it within 30 days. YOUR 90-DAY JOURNEY Week 1-2: Nail bed starts repairing. Cuticles begin to heal. Week 4: Visible white tips appear. Nails feel stronger. Week 12: Full healthy nails. Most damage is fully reversed. You're not broken. You just need the right system. PREMIUM Start with a free 3-day trial. Premium unlocks unlimited tracking, a full photo diary, detailed analytics, daily recovery tips, and your personalized recovery timeline. Download NailFree today and take your first step toward nails you're proud of. Terms of Use: https://www.nailfree.app/terms Privacy Policy: https://www.nailfree.app/privacy
Screenshots
Verdict
The clearest difference is price: NailFree at Free against SmartBehavior's $4.99. SmartBehavior's advantage is in-app purchases (none vs 1) and iOS requirement (16.6 vs 26.0). On ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
NailFree is free to download; SmartBehavior costs $4.99 up front. NailFree sells 1 in-app purchase, starting at $3.99 per 7 days. SmartBehavior asks for nothing beyond the download.
| Parameter | SmartBehavior | NailFree |
|---|---|---|
| Price | $4.99 | Free โ better |
| Ads | No | No |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 16.6 โ better | 26.0 |
| Further details โ not scored | ||
| Size | 45 MB | 11 MB |
| Age rating | 4+ | 12+ |
| Developer | Julian Kern | DOMINIK STRNADEL |
In-app purchases
SmartBehavior
No in-app purchases
NailFree
- NailFree Premium3 Days trial$3.997 Days







