Comparison

Fartlek Interval Trainer vs Run/Walk Interval Training

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

Run/Walk Interval Training

This app provides a customizable timer for interval training, guiding users through custom run and walk durations with visual and audio cues. Track your progress with workout history and enjoy a clean, intuitive interface designed for focused fitness sessions.

Highlights
  • Customizable run/walk durations
  • Adjustable number of intervals
  • Visual and audio feedback
  • Pause and resume functionality
  • Workout history tracking
  • Color-coded phases
  • Dark mode support
Features
Read full description

Perfect Your Interval Training Run/Walk Interval Training is a simple, intuitive app designed for runners and walkers who want to customize their interval training sessions. Whether you're training for a race, improving your fitness, or just want a structured workout, this app guides you through every step. Key Features: Customizable Intervals - Set your run and walk durations from 0.5 to 10 minutes each - Choose the number of intervals (1-20) to match your fitness level - Automatic time estimation so you know exactly how long your workout will take Smart Timer - Visual and audio feedback for every phase transition - Clear countdown timer showing time remaining - Progress bar tracking your completed intervals - Pause and resume functionality - perfect for unexpected stops Audio & Haptic Feedback - Voice announcements tell you when to run and walk - Haptic vibrations ensure you never miss a transition, even when your phone is in your pocket - System sounds provide additional audio cues Workout History - Track all your past workouts with dates and settings - Quickly reload previous workout configurations - See your progress over time Beautiful Design - Clean, modern interface that's easy to use - Color-coded phases: Red for run, Blue for walk - Dark mode support - Smooth animations and transitions Perfect For: - Couch to 5K runners - Interval training enthusiasts - Walkers looking to add running intervals - Anyone who wants structured workout guidance Why Choose Run/Walk Interval Training? Unlike complex fitness apps with overwhelming features, Run/Walk Interval Training focuses on one thing: helping you complete your interval training sessions. The app works seamlessly in the background, so you can lock your phone and still receive audio and haptic feedback. No complicated setup, no unnecessary features - just a reliable timer that helps you achieve your fitness goals. Start your interval training journey today!

Screenshots

Fartlek Interval Trainer4 screens
Run/Walk Interval Training3 screens

Verdict

The call

The clearest difference is in-app purchases: Run/Walk Interval Training at none against Fartlek Interval Trainer's 4. Run/Walk Interval Training also leads on review sentiment (100% vs 75%) and update cadence (every 3 days vs weekly). On price, 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. Fartlek Interval Trainer sells 4 in-app purchases, starting at $0.99 per month. Run/Walk Interval Training asks for nothing beyond the download.

UpkeepUpdate frequency

Fartlek Interval Trainer ships an update weekly, Run/Walk Interval Training every 3 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
Fartlek Interval Trainer versus Run/Walk Interval Training: the parameters behind the verdict, then further details
ParameterFartlek Interval TrainerRun/Walk Interval Training
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, Apple WatchiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size85 MB1 MB
Age rating4+4+
DeveloperRichard EnglishJordan George

Customer experience

Fartlek Interval Trainer

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

Run/Walk Interval Training

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
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

Run/Walk Interval Training

No in-app purchases

Questions

Is Fartlek Interval Trainer free?
Fartlek Interval Trainer is free to download, with in-app purchases available.
Is Run/Walk Interval Training free?
Run/Walk Interval Training is free to download, with no in-app purchases.
Do Fartlek Interval Trainer or Run/Walk Interval Training have ads?
Neither Fartlek Interval Trainer nor Run/Walk Interval Training shows ads.
Which is updated more often, Fartlek Interval Trainer or Run/Walk Interval Training?
Fartlek Interval Trainer ships an update weekly, and Run/Walk Interval Training every 3 days. Most recently, Fartlek Interval Trainer was updated on October 9, 2026 and Run/Walk Interval Training on October 10, 2026.

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