3-2-1 Go !

3-2-1 Go !

17 Interval Training Designs

1 ratings
18 reviews

Archived App (Last seen on 12 May 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • October 27, 2017
  • October 28, 2022

Features

3-2-1 Go ! screenshot #1 for iPhone
3-2-1 Go ! screenshot #2 for iPhone
3-2-1 Go ! screenshot #3 for iPhone
3-2-1 Go ! screenshot #4 for iPhone
3-2-1 Go ! screenshot #5 for iPhone
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About

This app offers 17 pre-designed high-intensity interval training (HIIT) workouts to improve aerobic performance. It features customizable timers, intensity displays based on power or RPE, and is suitable for various sports like running, cycling, and swimming.

17 HIIT workout designs
Customizable timers with visual cues
Intensity display (power, speed, pace, RPE)
Suitable for running, cycling, swimming, rowing, etc.
VO2MAX, endurance, and anaerobic capacity improvement
Progressive field test for runners
Show original description

What's New in 3

4.0

October 28, 2022

General update to fix bugs

1

In-App Purchases

$3.99

Full Version

Full Version

User reviews

J adore!

Vous en avez marre des 6x1000 et 10x400, c est l application qu il vous faut pour rompre avec la monotonie.

Améliorations proposées

App sympa ! Ça dynamise les entraînements !
Cependant elle est un peu rustique, ça serait intéressant d’avoir les valeurs des blocs en fonction de la
Vma ou pma rentrée avant l’entraînement afin de le mettre sur notre montre ou tout simplement ne plus avoir à checker le tél tout le temps ! Ou alors une voix qui parle dans les écouteurs ?

Attention beug si on touche pas l’appli tout s’arrête (mode cadenas hier, tout s’est arrêté d’une coup, mode veille ?)

Ne pas à voir à rentrer la vma ou pma à chaque fois quand on oscille entre les entraînements vélo et course .. mais choisir plutôt le sport dans le menu et les calculs se font tous seuls

Hâte de voir ces améliorations dans l’app !
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FCMAX ou FC de reserve

Le vam est proposé.
Il ne manque plus que l'affichage du pourcentage de la FC max et de réserve pour les scéances d'EPI

Commentaire test

Test

On ne peux plus télécharger la version complète

Bonjours après à soir acheter l’application je ne peux pas utiliser tout les training mais seulement les 2 premier de base

FAQ

What is 3-2-1 Go !?

3-2-1 Go ! provides 17 pre-designed high-intensity interval training (HIIT) workouts engineered to improve aerobic performance. These workouts are suitable for a variety of sports and can help enhance VO2MAX, endurance, and anaerobic capacity.

What kind of workouts does 3-2-1 Go ! offer?

The app features 17 distinct HIIT workout designs, ranging from 17 to 83 minutes in length. These workouts are structured with varying patterns of high and low-intensity periods to be engaging and sustainable.

Can 3-2-1 Go ! be used for different sports?

Yes, all workouts can be performed in any aerobic sport, including spinning, cycling, running, cross-country skiing, rowing, swimming, and skating. It also includes a progressive field test for runners to measure Maximal Aerobic Speed (MAS).

How does 3-2-1 Go ! display workout intensity?

Intensity can be displayed in power (watts), speed, or pace if you know your MAP, FTP60, or MAS. Alternatively, intensity can be set using the Rate of Perceived Exertion (RPE) method.

What are the timer features in 3-2-1 Go !?

The app includes easy-to-follow timers with a red background for intervals and a blue background for recovery periods. It also provides transition beeps and/or vibrations, intensity bar graphs with progress indicators, and info tables for interval and rest times.

Is 3-2-1 Go ! free to use?

A trial version of 3-2-1 Go ! is available for free, which includes the first two workout designs. To unlock the remaining 15 workout designs, a complete version must be purchased.

What devices does 3-2-1 Go ! support?

3-2-1 Go ! is supported on iPhone and iPod devices. The app is rated for ages 4 and up.

How often is 3-2-1 Go ! updated?

The latest version of 3-2-1 Go ! is 4.0, and it was last updated on October 28, 2022. The app was originally released on October 27, 2017.