Comparison

Intervals vs Rowly

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

Head to head
About

Intervals

This app provides a versatile interval timer for various training styles like HIIT and Tabata, integrating seamlessly with Apple Watch and iPhone. It offers detailed workout tracking, custom workout creation, and performance analytics to help users achieve their fitness goals.

Highlights
  • Real-time workout tracking on Apple Watch
  • Customizable workout editor
  • Training Impulse and heart rate zone analysis
  • Game Center integration for leaderboards
  • Weekly progress challenges
  • Apple Health integration
Features
Read full description

The Ultimate Fitness & Interval Training App for Apple Watch Achieve your fitness goals with our versatile interval timer, perfect for HIIT, Tabata, functional training, cross-training, and more. Designed for everyone from recreational athletes to pros, this app offers a comprehensive training experience, seamlessly integrating Apple Watch and iPhone. It combines a comprehensive activity feed with insightful fitness statistics and all your essential health metrics in one beautifully designed app. Features: * Real-Time Workout Tracking – Track your workout on Apple Watch while viewing all relevant data live on your iPhone. * Comprehensive Workout Editor – Create custom workouts with blocks and steps—whether for HIIT, Tabata, or other interval structures—to tailor your training exactly to your needs. * Training Impulse & Heart Rate Zones – Calculate your Training Impulse and view your daily training load at a glance. Train with customizable heart rate zones for optimal intensity. * Points & Self-Competition – Earn points based on your workout intensity and compete with yourself in every split. New: Compete & Analyze Like Never Before! * Game Center Integration – Compare your workout scores with other athletes in the weekly Intervals League. * Weekly Progress Challenges – Beat your past workouts and push for new personal bests in the race for the best week of the year. * Training Load Balance – With TRIMP (Training Impulse) analysis, track your short-term and long-term training load to see if you're pushing too hard or need to step it up. * Enhanced Statistics – Get deeper insights into your performance, including personal records and detailed training metrics. Pro Features (PRO subscription required) * Additional Sports – Access specialized timers for fitness gaming, rowing, running, cycling and more. * Advanced Workout Editor – Plan even more precisely with added warm-up and cooldown phases. * Apple Watch Workout Export – Export your workouts as native Apple Watch workouts. * Statistics & History – Analyze your progress and view your workout history. All workouts are saved in Apple Health and can be reviewed for detailed insights. Make every split a challenge and take full control of your progress! Download the ultimate interval workout timer now and make your HIIT and Tabata workouts more precise and effective! Note: The workout feature requires an Apple Watch to track your heart rate and training data. Health App Integrations: Intervals uses your health data from the Health App (HealthKit) to display your energy burned, record your workouts, and display your current heart rate. Privacy policy: http://apps.gogolith.com/privacy
 Terms and Conditions: http://apps.gogolith.com/row-terms

About

Rowly

Features
Read full description

Rowly is a rowing performance tracking app designed for on-water training and post-session analysis. It uses your phone’s GPS and motion sensors to record key rowing metrics in real time and presents them in a clear, practical way for review after each session. Rowly is free to use for real-time tracking during your sessions. See your pace, stroke rate, distance, and more as you row. More extensive analytics, integration with heart-rate sensor, and uploads to Strava are available in the Premium plan - with which you help me cover the cost of development. Rowly is suitable for both individual rowers and coxswains who want better insight into pace, rhythm, efficiency, and consistency during and after training. Uses advanced sensor fusion combining GPS, accelerometer, and gyroscope with Kalman filtering and zero-crossing stroke detection for accurate speed, stroke rate, and boat stability tracking — no external hardware needed. Terms of use / EULA can be accessed here: https://rowly.ecvis.nl/terms

Screenshots

Intervals4 screens
Rowly4 screens

Verdict

The call

The clearest difference is iOS requirement: Rowly at 13.0 against Intervals's 18. On price, update cadence, ads and in-app purchases 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. Intervals sells 2 in-app purchases, starting at $2.99 per month and Rowly sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Intervals ships an update every 9 days, Rowly weekly. The most recent releases landed on September 24, 2026 and September 25, 2026 respectively.

Scorecard1 real difference · 9 level
Intervals versus Rowly: the parameters behind the verdict, then further details
ParameterIntervalsRowly
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 9 daysWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS1813.0 — better
Further details — not scored
Size49 MB44 MB
Age rating4+4+
DeveloperChristoph GogolinErik Christiaan Visser

In-app purchases

2 purchases

Intervals

Subscriptions2
  • All Pro features (monthly)$2.991 Month
  • All Pro features (yearly)7 Days trial$12.991 Year
3 purchases

Rowly

Subscriptions2
  • Rowly Premium - Monthly$0.991 Month
  • Rowly Premium - Annual$9.991 Year
One-time1
  • Rowly Premium - Lifetime$19.99

Questions

Is Intervals free?
Intervals is free to download, with in-app purchases available.
Is Rowly free?
Rowly is free to download, with in-app purchases available.
Do Intervals or Rowly have ads?
Neither Intervals nor Rowly shows ads.
Which is updated more often, Intervals or Rowly?
Intervals ships an update every 9 days, and Rowly weekly. Most recently, Intervals was updated on September 24, 2026 and Rowly on September 25, 2026.

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