Comparison

3,2,1 Run vs The Belly Lab

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

The Belly Lab

Features
Read full description

The Belly Lab, créé par Joëlle G., est votre espace bien-être dédié à la santé du ventre, de la posture et du plancher pelvien. Retrouvez une méthode douce, efficace et accessible à toutes, pensée pour vous aider à mieux comprendre votre corps, renforcer votre centre et retrouver un véritable confort au quotidien. Une expérience pensée pour vous • Accédez à vos programmes vidéo structurés étape par étape • Découvrez des exercices ciblés, simples et réalisables chez vous • Suivez votre progression grâce à vos succès quotidiens • Adoptez des habitudes durables pour un ventre plus tonique et apaisé Contenu exclusif La méthode The Belly Lab repose sur trois piliers : respiration, posture et engagement profond. Chaque séance est conçue pour vous guider en douceur et vous permettre d’obtenir des résultats réels sans contraintes. Objectifs de la méthode • Améliorer la posture • Renforcer les muscles profonds • Apaiser les tensions abdominales • Diminuer le stress et favoriser le bien-être digestif • Retrouver un ventre plus plat, naturellement Une approche bienveillante The Belly Lab met au centre une philosophie essentielle : prendre soin de soi, sans pression. Vous avancez à votre rythme, accompagnée par des conseils adaptés et une vision holistique du bien-être féminin. Accès réservé L’application est dédiée aux membres The Belly Lab. Si vous êtes déjà abonnée, connectez-vous pour retrouver tout votre contenu. Si vous découvrez la méthode, vous pouvez consulter les informations sur le site officiel.

Screenshots

3,2,1 Run4 screens
The Belly Lab4 screens

Verdict

The call

The clearest difference is in-app purchases: 3,2,1 Run at none against The Belly Lab's 1. On price, update cadence, ads 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. The Belly Lab sells 1 one-off in-app purchase. 3,2,1 Run asks for nothing beyond the download.

UpkeepUpdate frequency

3,2,1 Run ships an update monthly, The Belly Lab every 6 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
3,2,1 Run versus The Belly Lab: the parameters behind the verdict, then further details
Parameter3,2,1 RunThe Belly Lab
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews43.9% of reviews—
Number of ratings2 — better—
Update frequencyMonthly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.6
Further details — not scored
Size9 MB3 MB
Age rating4+17+
DeveloperC GodefroyThe Belly Lab Limited

In-app purchases

None

3,2,1 Run

No in-app purchases

1 purchases

The Belly Lab

One-time1
  • TBL Les Bases$49.99

Questions

Is 3,2,1 Run free?
3,2,1 Run is free to download, with no in-app purchases.
Is The Belly Lab free?
The Belly Lab is free to download, with in-app purchases available.
Do 3,2,1 Run or The Belly Lab have ads?
Neither 3,2,1 Run nor The Belly Lab shows ads.
Which is updated more often, 3,2,1 Run or The Belly Lab?
3,2,1 Run ships an update monthly, and The Belly Lab every 6 weeks. Most recently, 3,2,1 Run was updated on October 31, 2026 and The Belly Lab on November 5, 2026.

Other comparisons