Comparison

Fartlek Interval Trainer vs Running Interval Timer Tracker

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

Head to head
About

Fartlek Interval Trainer

This running app automatically detects spontaneous intervals during Fartlek runs, providing live color-coded feedback on your effort. It also functions as a powerful timer for structured workouts like HIIT and Tabata, offering detailed metrics and syncing with Strava and Apple Health.

Highlights
  • Auto-detection of Fartlek intervals
  • Live color-coded effort feedback
  • Structured workout timer (HIIT, Tabata)
  • Detailed interval metrics
  • Strava and Apple Health integration
  • Advanced effort level detection
Features
Read full description

Build the interval workout you want. Stay on target while you train. Then learn from every session. FiT is an interval timer and training companion for runners on Apple Watch and iPhone. Create classic intervals, HIIT and Tabata workouts—or run freely with automatic Fartlek interval detection. CREATE WORKOUTS YOUR WAY Build simple work-and-rest sessions or advanced workouts with warm-ups, cooldowns, repeated sets and multiple effort levels. FiT makes even complex sessions clear and easy to follow. STAY ON TARGET Color-coded feedback shows whether you’re on pace. Spoken coaching, audio and haptic alerts help you respond without constantly checking your device—and spoken cues automatically match your chosen language. The Dual Progress Ring shows both your current interval and your overall workout progress at a glance. FARTLEK WITHOUT THE BUTTONS Switch to Fartlek mode and run by feel. FiT detects changes in your speed and automatically converts them into recorded intervals. No reaching for your device. No tapping between efforts. Just run. LEARN FROM EVERY WORKOUT See how each interval performed with detailed pace, heart rate, cadence and distance metrics. Compare workouts to understand how your performance changes over time. Personalized coaching insights use your workout data to highlight meaningful patterns and offer practical recommendations for future sessions. ADVANCED EFFORT TRACKING Advanced workouts can distinguish between sprint, hard, moderate and easy efforts, helping you create more varied sessions and analyze every effort afterwards. APPLE WATCH, IPHONE AND YOUR FITNESS APPS Train in your chosen language on Apple Watch or iPhone. Create and edit interval workouts directly on your watch, with controls for inserting, reordering and deleting interval groups. Save completed workouts to Apple Health and sync your sessions with Strava. KEY FEATURES • Flexible interval timer for running, HIIT and Tabata • Automatic Fartlek interval detection • Dual-ring live workout progress • Color-coded pace and effort feedback • Localized spoken coaching, plus audio and haptic alerts • Create and edit interval workouts on Apple Watch • Detailed pace, heart rate, cadence and distance metrics • Performance tracking for every interval • Workout comparisons and personalized insights • Sprint, hard, moderate and easy effort levels • Apple Health and Strava integration • Light and dark appearance Run free. Train smart. Learn from every session. SUBSCRIPTION TERMS FiT offers an optional auto-renewable subscription. Payment will be charged to your Apple ID account at confirmation of purchase. The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.iubenda.com/privacy-policy/39192677

About

Running Interval Timer Tracker

This app helps you create and track personalized running interval workouts. Customize rounds, sprint durations, and recovery periods for high-intensity training. Its simple interface makes it easy to focus on your run and improve performance.

Highlights
  • Customizable intervals
  • High-intensity training (HIIT)
  • User-friendly interface
  • Versatile workout types
  • Warm-up and cool-down periods
  • Track performance
Features
Read full description

Get ready to supercharge your running workouts with the Running Interval Timer app! Whether you're into high-intensity sprints or intermittent running, this app is your ultimate training companion. Key Features: Customizable Intervals: Tailor your training to perfection by setting the number of rounds, sprint duration, and recovery periods. Want to add a warm-up and cool-down? You got it! High-Intensity Training: Take your fitness to the next level with high-intensity interval training (HIIT). Boost your speed, stamina, and endurance effectively. User-Friendly Interface: Our app is designed with simplicity in mind, so you can focus on your run, not on complicated settings. Ready to revolutionize your running routine? Download the Running Interval Timer app now and transform your workouts today! Customizable Intervals: Tailor your training sessions to your exact needs. Set the number of rounds, sprint duration, and recovery periods to create personalized workout routines. High-Intensity Training (HIIT): Elevate your fitness game with high-intensity interval training. HIIT is proven to boost speed, stamina, and endurance, helping you achieve your fitness goals faster. Improved Performance: With precise interval timing, you can optimize your training for better results. Maximize your performance and make the most out of every run. Easy-to-Use Interface: Our app is designed for simplicity. Say goodbye to complex settings and focus on your run. It's user-friendly for all levels of runners. Versatile Workouts: Whether you're into sprints, long-distance running, or any type of interval training, this app adapts to your preferences. Customize warm-up and cool-down periods as well. Train Anywhere: Take your training with you wherever you go. The Running Interval Timer app is your portable fitness companion, accessible anytime and anywhere. Motivation: Stay motivated with structured workouts. The app keeps you on track, making it easier to reach your running and fitness goals. Achieve Results: Whether you're a beginner or an experienced runner, our app helps you achieve tangible results. Boost your performance and see positive changes in your running abilities. Free Download: Get started on your fitness journey without any initial cost. Download the Running Interval Timer app today and unlock the potential for better running workouts. Enhance your running experience and reach your fitness milestones with the Running Interval Timer app. Download now and start your journey towards a healthier, fitter you!

Screenshots

Fartlek Interval Trainer4 screens
Running Interval Timer Tracker3 screens

Verdict

The call

The clearest difference is in-app purchases: Running Interval Timer Tracker at none against Fartlek Interval Trainer's 4. Running Interval Timer Tracker also leads on iOS requirement (15 vs 26.0). Fartlek Interval Trainer's advantage is ads (none vs shown) and update cadence (every 9 days vs every 17 months). On price 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. Fartlek Interval Trainer sells 4 in-app purchases, starting at $0.99 per month. Running Interval Timer Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Fartlek Interval Trainer ships an update every 9 days, Running Interval Timer Tracker every 17 months. The most recent releases landed on September 22, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 4 level
Fartlek Interval Trainer versus Running Interval Timer Tracker: the parameters behind the verdict, then further details
ParameterFartlek Interval TrainerRunning Interval Timer Tracker
PriceFreeFree
Rating—4.4 (19 ratings) — better
Positive reviews75.0% of reviews — better62.5% of reviews
Number of ratings—19 — better
Update frequencyEvery 9 days — betterEvery 17 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS26.015 — better
Further details — not scored
Size84 MB2 MB
Age rating4+4+
DeveloperRichard EnglishApp All Day Pty Ltd

Customer experience

Fartlek Interval Trainer

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Running Interval Timer Tracker

All ratings19 ratings
Positive84.2%
Neutral10.5%
Negative5.3%
Written reviews8 reviews
Positive62.5%
Neutral37.5%
Negative0.0%

In-app purchases

4 purchases

Fartlek Interval Trainer

Subscriptions2
  • Monthly$0.991 Month
  • Annual7 Days trial$6.991 Year
One-time2
  • RemoveAds$0.99
  • Lifetime$14.99
None

Running Interval Timer Tracker

No in-app purchases

Questions

Is Fartlek Interval Trainer free?
Fartlek Interval Trainer is free to download, with in-app purchases available.
Is Running Interval Timer Tracker free?
Running Interval Timer Tracker is free to download, with no in-app purchases.
Do Fartlek Interval Trainer or Running Interval Timer Tracker have ads?
Running Interval Timer Tracker shows ads; Fartlek Interval Trainer does not.
Which is updated more often, Fartlek Interval Trainer or Running Interval Timer Tracker?
Fartlek Interval Trainer ships an update every 9 days, and Running Interval Timer Tracker every 17 months. Most recently, Fartlek Interval Trainer was updated on September 22, 2026 and Running Interval Timer Tracker on September 23, 2026.

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