Comparison

Harf Workout Timer vs Intervals

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

Head to head
About

Harf Workout Timer

Features
Read full description

Workout Timer a straightforward IOS App that serves as a stopwatch for your workouts. You can customize it to your needs by setting the number of rounds and exercises, selecting several sounds or importing your own sounds and importing your own background image.

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

Screenshots

Harf Workout Timer2 screens
Intervals4 screens

Verdict

The call

The clearest difference is in-app purchases: Harf Workout Timer at none against Intervals's 2. On price, update cadence, 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. Intervals sells 2 in-app purchases, starting at $2.99 per month. Harf Workout Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Harf Workout Timer ships an update weekly, Intervals every 9 days. The most recent releases landed on September 15, 2026 and September 24, 2026 respectively.

Scorecard1 real difference · 9 level
Harf Workout Timer versus Intervals: the parameters behind the verdict, then further details
ParameterHarf Workout TimerIntervals
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS18.018
Further details — not scored
Size1 MB49 MB
Age rating4+4+
DeveloperR&D Advance BVChristoph Gogolin

In-app purchases

None

Harf Workout Timer

No in-app purchases

2 purchases

Intervals

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

Questions

Is Harf Workout Timer free?
Harf Workout Timer is free to download, with no in-app purchases.
Is Intervals free?
Intervals is free to download, with in-app purchases available.
Do Harf Workout Timer or Intervals have ads?
Neither Harf Workout Timer nor Intervals shows ads.
Which is updated more often, Harf Workout Timer or Intervals?
Harf Workout Timer ships an update weekly, and Intervals every 9 days. Most recently, Harf Workout Timer was updated on September 15, 2026 and Intervals on September 24, 2026.

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