Comparison

NailKeeper vs Unbite

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

Head to head
About

NailKeeper

This app helps you break the habit of nail biting and picking by visually tracking your progress. It uses photo comparisons and video progression to motivate you, alongside features like timers, reminders, and helpful tips.

Highlights
  • Photo tracking of nail changes
  • Before and after image comparison
  • Video progression of nail recovery
  • Photo taking reminders
  • Time elapsed tracker
  • Tips for nail growth and impulse control
  • Daily streak widget
Features
Read full description

Wish you could stop biting your nails? NailKeeper will motivate you to quit the habit of nail-biting. I've suffered from this bad habit for a long time. I tried many different things, but nothing helped me more than seeing my nails in photos. NailKeeper will track your nail growth by showing you a photo comparison and video progression of your nails. Easily track your progress and quit nail picking and biting habit. FEATURES: - Take photos to track your nail changes over time. - Check progress with a before and after image. - View a photo comparison in video mode to see how your nails recover. - Get notifications to take photos and log your progress. - Monitor how much time has passed since you quit. Restart the timer if you relapse. - Learn tips and tactics to grow your nails faster and better control your impulses. - Add a daily streak Widget to your homepage. - Get stats about your growing nails. Terms of use : https://nailkeeper.app/terms/

About

Unbite

This app helps you break the habit of nail biting by tracking episodes, identifying triggers, and celebrating progress. It offers personalized insights and gentle reminders to support your journey towards healthier nails and increased confidence.

Highlights
  • Track nail biting urges and episodes
  • Identify emotional and situational triggers
  • Monitor progress with visual tracking
  • Receive personalized tips for motivation
  • Celebrate streaks and milestones
  • Analyze trigger and finger patterns
Features
Read full description

Unbite is the first habit tracker built to help you break free from nail biting. Designed for people struggling with chronic nail biting (onychophagia), stress-related habits, or body-focused repetitive behaviors (BFRBs), Unbite helps you understand your urges, build awareness, and grow healthier nails with compassion. Track your nail biting episodes, monitor emotional triggers, and celebrate your progress as you reduce harmful habits over time. With personalized insights and gentle reminders, Unbite turns recovery into a daily routine — helping you regain control, one day at a time. Whether you're trying to stop biting your nails, prevent damage to your fingers, or feel more confident in your hands, Unbite is here to support your progress. PREMIUM FEATURES (unlock with subscription after free trial) • Track and log nail biting urges effortlessly • Stay motivated with streaks for tracked days • Gain insight with heatmaps, trigger and finger analysis TRACK YOUR HABIT Log nail biting urges and episodes with just a tap • Capture biting moments to uncover patterns • Identify triggers like stress, boredom or anxiety • Track your progress visually over time REDUCE BITING Use tools that actually help you stop • Personalized tips to stay motivated and mindful • Reflect on triggers to reduce the urge over time • Notice real progress through consistent tracking HEAL & REGROW Start rebuilding your nails and confidence • Celebrate streaks and milestones • Track nail healing and growth • Reconnect with your nails through positive habits YOUR DATA, YOUR CONTROL Unbite keeps everything private by design • All data is stored locally on your device • No cloud sync, no tracking, no ads • You're in full control of your healing journey DISCLAIMER Unbite does not provide medical advice. Consult a doctor in addition to using this app and before making medical decisions. Unbite is designed as a self-help tool to help you better understand and monitor your behavior. It is not a diagnostic tool and should not be used as a substitute for professional medical advice. Privacy Policy: https://diagnostic-ferret--7f2.notion.site/Unbite-Privacy-Policy-23082d8e54338067ae30c7dfe9c9623e Terms of Use: https://diagnostic-ferret--7f2.notion.site/Unbite-Terms-of-Use-23082d8e543380d39df3c1ce81927c7e

Screenshots

NailKeeper4 screens
Unbite4 screens

Verdict

The call

The clearest difference is review sentiment: NailKeeper at 77% against Unbite's 0%. NailKeeper also leads on update cadence (fortnightly vs every 4 months). On price, ads, in-app purchases and monetization model 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. NailKeeper sells 3 in-app purchases, starting at $4.99 per month and Unbite sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NailKeeper ships an update fortnightly, Unbite every 4 months. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
NailKeeper versus Unbite: the parameters behind the verdict, then further details
ParameterNailKeeperUnbite
PriceFreeFree
Rating4.5 (276 ratings) — better—
Positive reviews77.2% of reviews — better0.0% of reviews
Number of ratings276 — better—
Update frequencyFortnightly — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size53 MB84 MB
Age rating4+4+
DeveloperPibardos LLCJonas Hiltl

Customer experience

NailKeeper

All ratings274 ratings
Positive87.2%
Neutral4.7%
Negative8.0%
Written reviews92 reviews
Positive77.2%
Neutral8.7%
Negative14.1%

Unbite

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

NailKeeper

Reported bugs

11 issues
  • Photos not uploading or syncing properly
  • Missing notifications functionality
  • Camera overlay issues making consistent poses difficult
  • App crashes when viewing photo gallery
  • Streak counter resets unexpectedly
Show 6 more
  • Camera functionality broken on iPhone 15 Pro
  • Photos not saving to camera roll
  • Cannot fullscreen photos
  • Accidental timer resets without undo option
  • Data loss when switching phones
  • Longest streak not updating correctly

Requested features

13 requests
  • Ability to manually set or backdate start date
  • Gamification elements (achievements, virtual pets, rewards shop)
  • Mood or trigger tracking for relapses
  • Widget on lock screen
  • Fullscreen photo viewing without premium
Show 8 more
  • Ability to import older photos
  • Notes section for tracking triggers
  • Support for tracking other habits (hair chewing, etc.)
  • Nail growth tips and natural growth methods
  • Improved app design and visual polish
  • Quick access timer controls for on-the-go use
  • Option to type urges or emotions
  • Better camera positioning reference overlay

Unbite

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

NailKeeper

Subscriptions2
  • Unlimited Access3 Days trial$4.991 Month
  • NailKeeper Pro Annual$9.991 Year
One-time1
  • NailKeeper Pro$19.99
2 purchases

Unbite

Subscriptions2
  • Weekly Full Access3 Days trial$2.997 Days
  • Annual Full Access3 Days trial$17.991 Year

Questions

Is NailKeeper free?
NailKeeper is free to download, with in-app purchases available.
Is Unbite free?
Unbite is free to download, with in-app purchases available.
Do NailKeeper or Unbite have ads?
Neither NailKeeper nor Unbite shows ads.
Which is updated more often, NailKeeper or Unbite?
NailKeeper ships an update fortnightly, and Unbite every 4 months. Most recently, NailKeeper was updated on November 3, 2026 and Unbite on November 5, 2026.

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