Comparison

3,2,1 Run vs Grindlocker

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

Head to head
About

3,2,1 Run

This fitness app provides structured training plans to help you start running, improve performance, and achieve fitness goals. It tracks outdoor activities like running and biking, offering real-time audio feedback on distance, speed, and calories burned. The app also includes custom training programs and an indoor mode for elliptical training.

Highlights
  • GPS activity tracking
  • Real-time audio feedback
  • Custom training programs
  • Workout history and stats
  • Music integration
  • Indoor training mode
Read full description

Start running, lose weight, run faster and farther and stay fit with this fitness app. Follow the coach! • Provides training plans to help you start running and run better • Records the GPS of your outdoor activities: running, biking, walking • Calculates the distance, duration, speed and fat you burnt • Info in audio, in real time • Integrates with the iPod music player • Displays your tracks on maps • Full and exportable history of your runs - Only app to provide trainings and programs to progress and prepare for challenges. - Ideal app for runners, bikers, walkers alike 321Run helps you run by monitoring your goals : set yourself a distance or duration goal, and your coach will tell you your progress, each km or each mile, every 5 minutes. The custom trainings will allow you to have precise directions from your coach when you need to run, walk, run fast. For faster trainings, it will tell you when to cool down and when to reach your max speed and heart rate frequency. Trainings come as programs to help you make progress gradually. An indoor mode allows you to record your perfs on a elliptic bike. During the run, you may press the screen to know your progress : how long and how far you are, what's left, double tap to skip the music easily, or you can switch it off to conserve battery. When you are finished, show your stats on your iPhone's main screen or check them on your performance screen. You can also export them by email. Review your history, your progress, total calories, speed and graphs to compare speed and altitude. See and browse your pas runs on the full screen map. Export your runs to many services. This app can still record your runs while in the background mode (not the app on your screen). Continued use of GPS running in the background can dramatically decrease battery life. Make sure you stop to record your run if you put 321Run in the background. This app can connect to the Health App if you would like to record time length, distance, calories of your runs. 3,2,1 Run is created by Cyril Godefroy in Paris, France.

About

Grindlocker

This app helps you regain control over your screen time by locking distracting apps and requiring you to complete real exercises like push-ups, sit-ups, and squats to unlock them. AI technology accurately counts your reps in real-time, ensuring accountability and rewarding your effort with earned screen minutes.

Highlights
  • AI rep counting for exercises
  • Lock distracting apps and categories
  • Automatic re-locking of apps
  • XP system, streaks, and levels
  • Customizable exercise and rep ratios
  • Minimalist and ad-free design
Features
Read full description

Lock your addictive apps and earn screen time back with real exercises: push-ups, sit-ups, and squats counted by AI in real time. Versus mode* Battle bots in 15, 30 or 60 second rep battles. The camera counts every rep live. Win ranked matches to climb from Wood to Champion, finish the daily blitz and weekly challenges for XP, and race your friends' best runs in groups. Block apps. Unlock with reps.* Grindlock is built for anyone who knows they scroll too much but can't stop. This app locks down your most distracting apps with Screen Time and makes you earn them back with real exercise. Our AI watches your form through the front camera and counts every rep. Accountability that actually works* Grindlock doesn't guilt-trip you or show you a timer. It makes you move. Pick your apps, pick your exercise, and set the deal: every rep = 2 minutes of scroll time. When your time's up, apps lock again automatically. AI-powered rep counting* Your front camera detects your form and counts every push-up, sit-up, and squat in real time. The AI validates each rep so you can't fake it. No manual input. No trust system. Just you vs. the camera. Screen time you actually earned* Instead of fighting willpower, you're trading reps for minutes. 10 push-ups = 20 minutes. You set the deal. You earn the time. It hits different when you worked for it. Features* • AI camera counts push-ups, sit-ups, and squats in real time • Lock any app or category with Screen Time • Automatic re-lock when your time expires • XP system, streaks, and levels to track your progress • Choose your exercise and set your own rep-to-time ratio • Minimalist design: no clutter, no guilt, no ads • Private and secure: camera processed on-device, never stored or sent Grindlock turns your screen time into gains. One rep at a time. If you have suggestions or questions, please email us at info@abenteuergeist.com NOTE: Grindlock includes fitness-related features intended for general wellness purposes. Nothing within the app should be interpreted as medical advice. For any medical concerns or decisions, please consult a licensed healthcare professional. *Full access to Grindlock's features is available with an active paid PRO subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. Privacy policy: https://abenteuergeist.com/grindlock/privacy Terms of use: https://abenteuergeist.com/grindlock/terms

Screenshots

3,2,1 Run4 screens
Grindlocker4 screens

Verdict

The call

The clearest difference is rating: Grindlocker at 4.6 against 3,2,1 Run's 3.0. Grindlocker also leads on review sentiment (83% vs 46%) and update cadence (every 4 days vs every 103 months). 3,2,1 Run's advantage is in-app purchases (none vs 4). On price and iOS requirement 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. Grindlocker sells 4 in-app purchases, starting at $9.99 per 7 days. 3,2,1 Run asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Grindlocker holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Grindlocker has 118 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 46% of 3,2,1 Run's written reviews are positive against 83% of Grindlocker's.

UpkeepUpdate frequency

3,2,1 Run ships an update every 103 months, Grindlocker every 4 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard6 real differences · 4 level
3,2,1 Run versus Grindlocker: the parameters behind the verdict, then further details
Parameter3,2,1 RunGrindlocker
PriceFreeFree
Rating3.0 (2 ratings)4.6 (118 ratings) — better
Positive reviews46.2% of reviews83.3% of reviews — better
Number of ratings2118 — better
Update frequencyEvery 103 monthsEvery 4 days — better
Ads—No
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Devices—iPhone — better
Requires iOS16.016.0
Further details — not scored
Size9 MB140 MB
Age rating4+4+
DeveloperC GodefroyAbenteuergeist

Customer experience

3,2,1 Run

Written reviews13 reviews
Positive46.2%
Neutral23.1%
Negative30.8%

Grindlocker

All ratings113 ratings
Positive93.8%
Neutral1.8%
Negative4.4%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

3,2,1 Run

No in-app purchases

4 purchases

Grindlocker

Subscriptions4
  • Weekly Unlimited Access$9.997 Days
  • Yearly Unlimited Discounted$24.991 Year
  • Yearly_Pro3 Days trial$39.991 Year
Show 1 more
  • Yearly Unlimited Access3 Days trial$49.991 Year

Questions

Is 3,2,1 Run free?
3,2,1 Run is free to download, with no in-app purchases.
Is Grindlocker free?
Grindlocker is free to download, with in-app purchases available.
Which has better reviews, 3,2,1 Run or Grindlocker?
Grindlocker is rated higher. 3,2,1 Run averages 3.0 out of 5 from 2 ratings, while Grindlocker averages 4.6 from 118 ratings.
Which is updated more often, 3,2,1 Run or Grindlocker?
3,2,1 Run ships an update every 103 months, and Grindlocker every 4 days. Most recently, 3,2,1 Run was updated on October 23, 2026 and Grindlocker on October 25, 2026.

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