Comparison

NailKeeper vs Strack

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

Strack

Features
Read full description

Proof that you're improving. Log each set in two taps and see exactly how much stronger you've gotten since you started. Last time's weight and reps are already filled in. Strack flags your personal records and shows you the improvement percentage for each exercise. LOGGING IS FAST Two taps per set. The weight and reps come prefilled with what you did last time, so you just confirm. SEE YOUR REAL PROGRESS Every exercise has its own history: how much you moved before, how much now, and the change in percent. It is not a feeling, it is weight on the bar. IT TELLS YOU WHEN TO ADD WEIGHT (STRACK MAX) Strack looks at your recent history and suggests the exact jump per exercise, with the reason behind it. TRAIN FROM YOUR WRIST Apple Watch app: log your sets, run the rest timer and finish the workout without taking your phone out of your pocket. YOUR GOAL, IN ONE SENTENCE Write your goal in your own words and Strack builds the plan. The rest is training and logging. KEEP THE STREAK The hard part is not training, it is coming back tomorrow. The streak shows your days in a row and your record. STRACK GO AND STRACK MAX Strack Go is free forever and never locks the app. You start with Strack Max at no cost and no card, until you complete 30 days and 10 sessions (whichever takes longer). After that you keep training free on Go or subscribe to Max. Strack Max adds: up to 6 plan regenerations a month (1 on Go), your full history (on Go you see the last month), suggested load progression, unlimited custom exercises (5 on Go) and adding exercises mid-session. Monthly or annual auto-renewing subscription. Payment is charged to your Apple Account at confirmation of purchase, and the subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel it in your Apple Account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Strack Terms: https://nearmind.io/strack/terms Privacy Policy: https://nearmind.io/strack/privacy-policy

Screenshots

NailKeeper4 screens
Strack4 screens

Verdict

The call

The clearest difference is ads: NailKeeper at none against Strack's shown. On price, update cadence, 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. NailKeeper sells 3 in-app purchases, starting at $4.99 per month and Strack 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

NailKeeper ships an update fortnightly, Strack every 9 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 9 level
NailKeeper versus Strack: the parameters behind the verdict, then further details
ParameterNailKeeperStrack
PriceFreeFree
Rating4.5 (277 ratings) — better—
Positive reviews77.2% of reviews—
Number of ratings277 — better—
Update frequencyFortnightlyEvery 9 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.1 — better16.4
Further details — not scored
Size53 MB75 MB
Age rating4+4+
DeveloperPibardos LLCNearmind SpA

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

Strack

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

Strack

Subscriptions2
  • Strack Max Monthly$4.991 Month
  • Strack Max Annual$29.991 Year

Questions

Is NailKeeper free?
NailKeeper is free to download, with in-app purchases available.
Is Strack free?
Strack is free to download, with in-app purchases available.
Do NailKeeper or Strack have ads?
Strack shows ads; NailKeeper does not.
Which is updated more often, NailKeeper or Strack?
NailKeeper ships an update fortnightly, and Strack every 9 days. Most recently, NailKeeper was updated on November 11, 2026 and Strack on November 10, 2026.

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