# Fartlek Runs — High intensity Interval Runs

> High-intensity interval training app for customizable speed play running workouts. (iPhone/iPad app by gluonBoson Applications, LLC.)

- Source: https://appshunter.io/ios/app/fartlek-runs/id551778795 (this page in markdown: same URL + `.md`)
- Developer: [gluonBoson Applications, LLC](https://appshunter.io/developer/522067447)
- Category: Health & Fitness, Sports
- Price: $3.99 with in-app purchases
- Rating: 2.00/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.7 · 9 MB
- Languages: American English
- Released: 2012-08-23
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/fartlek-runs/id551778795/reviews.md

## What is Fartlek Runs?

Fartlek, which means "speed play" in Swedish, is a form of high intensity interval training in which you use the body's energy systems alternating intensities and time durations during the workout.. This puts the body’s energy systems under a acyclic stress, better mimicking sports specific energy demands. 

With the Fartlek Drill App you can train in several modes making each workout different. You can either quickly select a drill based on an intensity level and sport or customize the drill in detail to better suit your training needs.

The Fartlek App has a “random” mode, in which the engine generates the number of stages, training intensities and durations based on a given sport.  You can also make your own time distribution (percentages) schemes.

You can configure manually each stage’s training intensity and time durations. You can combine random and manual effects, making this App fairly versatile to adapt to your needs.

Using the In-App Upgrades you can upgrade the App to include the Training Zones Module. This module allows you to configure a time distribution scheme and save it as a sport, which can be used it in any run as you use the default sports.

This App is available in a sale bundle with our AeroExaminer App, allowing you about 25% savings when compared to purchasing separately.

Features 

• Several standard drill versions
• Quick drill setup
• Random and structured drill modes
• Up to 200 allowable stages
• Select stage training levels from four primary training zones (or paces)
• Five standard training intensities to distribute the total drill time
• Set your own time distribution scheme
• Use the Detailed Setup to customize most drill parameters
• Save your customized drills
• Help available for user input parameters
• Running distance when GPS is available.  "Continued use of GPS running in the background can dramatically decrease battery life."
• Saves data of multiple users. 
• Supports portrait and landscape screen orientation on the "Run Screen". 
• Can lock the screen orientation before running. 
• Listen & control music or audio books while running. 
• Detailed drill information with table of contents. 
• Male or female voice guidance. 
• Several types of announcements. 
• Export the user data by e-mail, in sqlite3 and CSV formats. 
• Select metric or US units. 
• Utilities to facilitate reporting problems.

For more information about the body's energy systems and aerobic and anaerobic fitness, maximum oxygen uptake (VO2max), training concepts and other useful information, please visit the pages in our "Support" section of our Website.

## Key features

- Customizable speed play workouts
- Random and structured drill modes
- Detailed drill customization
- Save custom drills
- Voice guidance
- Export user data
- GPS tracking for distance

## Pricing and in-app purchases

Base price: $3.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Training Zones | $0.99 | one-time |
| AeroRadar App Features | $0.99 | one-time |
| AeroRadar App Features | Free | one-time |
| AeroTrainer+ App Features | $2.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/fartlek-runs/id551778795/reviews.md

### 2/5 — Bummer.....

*2013-09-08, version 2.0.1*

I used it once. Every time I push a button on my phone it ends the drill. Frustrating…

### 2/5 — Not very intuitive

*2013-09-04, version 2.0.1*

I just wanted an app to do simple Fatrleks.  Set the duration, fast time, recovery time and number of sets.

This does not do that

### 1/5 — Not impressed

*2013-08-02, version 1.0.1*

For $5 I was hoping for more. The app doesn't even log distance. Oh well. Live and learn. It has potential but they need to do some work.  

**spoke with someone through email a few times but the issue was never resolved.

## Frequently asked questions about Fartlek Runs

### What is Fartlek Runs?

Fartlek Runs is a health and fitness app designed for high-intensity interval training (HIIT) using the 'speed play' method. It allows users to create varied running workouts by alternating intensities and durations.

### How does Fartlek Runs work?

The app enables users to select standard drills, create quick setups based on intensity and sport, or customize drills in detail. It features random modes that generate workout parameters based on a chosen sport.

### Can I save my custom workouts in Fartlek Runs?

Yes, you can save your customized drills and time distribution schemes as custom sports within the app. This allows you to easily reuse your preferred workout configurations.

### Does Fartlek Runs support GPS tracking?

Yes, Fartlek Runs supports GPS tracking to record running distance when available. However, continued use of GPS in the background can significantly decrease battery life.

### What kind of data can I export from Fartlek Runs?

You can export user data from Fartlek Runs via email in sqlite3 and CSV formats. This allows for further analysis or backup of your training records.

### What are the training zones in Fartlek Runs?

The app allows you to select stage training levels from four primary training zones, or paces. These zones help in distributing the total drill time across five standard training intensities.

### What is the price of Fartlek Runs?

Fartlek Runs is available for a one-time purchase of $3.99. It is also offered in a sale bundle with the AeroExaminer App, providing approximately 25% savings.

### How often is Fartlek Runs updated?

The latest version of Fartlek Runs is 5.1, which was last updated on December 31, 2022. This indicates a history of updates, though the frequency can vary.

## Version history (last 5 releases)

### 5.1 — 2022-12-31

- Fixed bug that wasn't allowing to add new users.
- Improved the detailed setup of the Fartlek drill.
- Improved the stages setup of the Fartlek drill.
- Added option for fixed and varying intensity level in standard and user customized Fartlek drills.
- Added a Star run as standard for the Fartlek Drill.
- In the Sprints drill, The run times are estimated from the user's fitness level.
- Improved the stages setup of the Sprints drill.
- Optimized for IOS 14.0.
- Other minor fixes and enhancements.

### 5.0 — 2022-11-30

• Added a Star run as standard for the Fartlek Drill.
• Improved the detailed setup of the Fartlek drill.
• Improved the stages setup of the Fartlek drill.
• Added option for fixed and varying intensity level in standard and user customized Fartlek drills.
• Optimized for IOS 14.0.
• Other minor fixes and enhancements.

### 4.1 — 2019-05-25

• Redesigned the home screen and general App's appearance
• The training intensity descriptions were changed to better reflect the different levels of intensity in a run
• You can tag your favorite run in the "Details" screen, to access this run quickly
• The App saves your last run settings, so you can later repeat that run. All the parameters are saved, thus even a random type run (like most of the Fartlek runs and Random Pulse) will save the run times for each stage
• Added a start pop out window to quickly select your favorite or last run. This window can be enabled/disabled in the App's "Settings"
• Now the Radar App functions are standard in the Fartlek App
• Made improvements to the Aero Radar functions
• You can upgrade the Aero Radar functions with the "Training Zones Upgrade", which enables to setup training time distribution for any given sport
• If you purchased the AeroTrainer+ upgrade, the random options of the Pulse Drill are now standard
• Added a Menu option to access other App features
• iCloud in no longer needed to backup your run data. The data is backed-up along with your device's backups
• Optimized for IOS 11.0
• Other minor fixes and enhancements

### 4.0 — 2019-05-11

• Redesigned the home screen and general App's appearance
• The training intensity descriptions were changed to better reflect the different levels of intensity in a run
• You can tag your favorite run in the "Details" screen, to access this run quickly
• The App saves your last run settings, so you can later repeat that run.  All the parameters are saved, thus even a random type run (like most of the Fartlek runs and Random Pulse) will save the run times for each stage
• Added a start pop out window to quickly select your favorite or last run.  This window can be enabled/disabled in the App's "Settings"
• Now the Radar App functions are standard in the Fartlek App
• Made improvements to the Aero Radar functions
• You can upgrade the Aero Radar functions with the "Training Zones Upgrade", which enables to setup training time distribution for any given sport
• If you purchased the AeroTrainer+ upgrade, the random options of the Pulse Drill are now standard
• Added a Menu option to access other App features
• iCloud in no longer needed to backup your run data.  The data is backed-up along with your device's backups
• Optimized for IOS 11.0
• Other minor fixes and enhancements

### 3.2 — 2017-01-10

These are some of the new features added or changed as compared to Version 2.4.0:

• Fixed issue when pausing a run and pressing the "Home" button or locking the device.
• Fixed some saving issues when going from the "Quick Setup" or "Detail Setup Screens to view the drill's details.
• Fixed bugs when changing the "Settings" on the "Utilities" screen.
• When you are running and press the home button or "lock" (or auto-lock) the device, the drill now continues to run instead of stopping. When you go back to the drill, it will resume displaying your run status.
• You can now enable GPS usage for tracking distance on the "Run" screen.
• Improved the picking monthly runs from the Run Log.
• Changes to a drill setup are saved when before viewing the details.  This happens when you press "Details" in the Setup screen.
• When adding stages to an structured drill, the stages are now added below the selected stage.
• When using AeroRadar, the fitness estimate from test VO2 max was fixed.
• Fixed normalization of zone times when setting the zone distribution times manually.
• Fixed screen lock issues when running.
• Fixed Cloud coordination issues and streamlined the usage.
• Fixed access to gBosonApps server to report problems.
• Fixed issues with in-app purchases.
• Optimized for IOS 9.3.
• Other minor fixes and enhancements.
• Also, visit the "Info" screen, of each drill, and select "What's New" for more details on the drill's additions/changes made.

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## More apps by gluonBoson Applications, LLC

- [AeroExaminer](https://appshunter.io/ios/app/aeroexaminer/id545121181)
- [Aero Trainer+](https://appshunter.io/ios/app/aero-trainer-plus/id558830692)
- [Quick Fartlek Runs](https://appshunter.io/ios/app/quick-fartlek-runs/id677173551)

All apps by gluonBoson Applications, LLC: https://appshunter.io/developer/522067447

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*