Comparison

Tabata & HIIT Interval Timer vs Interval Flow

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

Head to head
About

Tabata & HIIT Interval Timer

This app functions as a versatile timer for high-intensity interval training (HIIT) and Tabata workouts. It guides users through structured exercise and rest periods, making it easy to follow popular interval training methods for effective, short-duration fitness sessions.

Highlights
  • Tabata timer
  • Interval timer
  • HIIT workout guidance
  • Structured exercise/rest periods
  • Customizable training
Features
Read full description

A dead simple interval timer. Open it, press play, train. Set your ready, work and rest times and the number of sets — that is the whole setup. A voice counts you in and calls every interval, so you never have to look at the screen while you train. WHAT PEOPLE USE IT FOR • HIIT and Tabata • Strength sets and weight circuits • Burpees, planks, mountain climbers, sprints • Stretching and mobility work • Anything that runs on a clock KEEPS GOING WHEN YOU LOOK AWAY Watch a video, change the music, lock your phone — the timer keeps counting and keeps talking. Glance at your Lock Screen to see how much is left. PLAYS WITH YOUR MUSIC Your music keeps going at its own volume. The announcements come over the top. FREE No account. No subscription. No full-screen ads. ABOUT TABATA Twenty seconds of work, ten seconds of rest, eight rounds, after a short warm-up. Devised by Professor Izumi Tabata at Ritsumeikan University, and used for squats, exercise bikes, running and much else. Maximum effort in each round is the point: a few minutes is said to do the work of far longer. Every duration is adjustable, so it does a great deal more than Tabata.

About

Interval Flow

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

Highlights
  • Color-coded intervals
  • Customizable circuits
  • Real-time progress tracking
  • Voice assist and search
  • Exercise library
  • Workout sharing
Features
Read full description

Interval Flow: Experience a Workout Revolution Interval Flow is your ultimate fitness companion, designed to transform your workout experience with deep customization and advanced tracking. This versatile app is perfect for a wide range of activities including HIIT, TABATA, CrossFit, Yoga, Pilates, Meditation, and more. With Interval Flow, you can stay focused on your fitness goals while the app handles the details. Key Features: - Color-Coded Intervals: Customize your workout visually with color-coded intervals. Set distinct colors for warm-ups, high-intensity bursts, rest periods, and more, to easily navigate through your routine. - Exercise Library: Build your workouts with ease! Add new exercises or select from the existing ones to tailor your workout to your specific needs. - Real-Time Progress Tracking: Keep a live tab on your workout progress. The dynamic interval list updates in real-time, ensuring you know exactly where you are in your routine. - Customizable Circuits: Create the perfect workout sequence by arranging various exercises into repeatable circuits tailored to your fitness level and goals. - Personalized Interval Warnings: Get timely alerts before an interval ends. Customize the warning sounds to suit your style, ensuring smooth transitions without missing a beat. - Interactive Workflow: Enjoy crafting your workouts with a user-friendly interface that’s as intuitive as it is functional. Setting up your ideal workout regime is now as engaging as the workout itself. - Voice Assist: Let our advanced voice assist guide you through your exercises, announcing what’s next so you can remain focused on your form and intensity. - Voice Search: Quickly find your favorite workouts using voice commands, making your preparation seamless and hands-free. - AirShare: Share your custom workouts with friends or clients effortlessly using AirDrop, enhancing connectivity and interaction. Why Choose Interval Flow? With Interval Flow, you don't just exercise, you experience a revolution in workout efficiency and enjoyment. The app’s intuitive interface and comprehensive customization options make it the optimal companion for anyone serious about fitness. Whether you're powering through a high-intensity session or seeking tranquility in yoga, Interval Flow adapts to your pace and preference. Unlock your potential with Interval Flow – where your workout meets innovation. Interval Flow Subscription: The app includes a 1 month long auto-renewable subscription with a 3-day free trial, which will unlock premium features, like unlimited workouts, timer program editing and autoplay and costs $4.99/ month. It will be charged to your credit card through your iTunes account and will automatically renew unless you canceled at least 24 hours before the end of the current period. Any unused portion of a free trial period will be forfeited when you purchase the subscription. Though your subscription for the current month cannot be canceled, you can turn auto-renewal off in your account settings after purchase. See the instructions here: https://support.apple.com/en-us/HT202039 You can read the terms of use and privacy policy here: https://kapi90.github.io/hiit_timer_privacy_policy.html End User License Agreement (EULA) of the App Store applies: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Tabata & HIIT Interval Timer3 screens
Interval Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: Tabata & HIIT Interval Timer at none against Interval Flow's 10. Tabata & HIIT Interval Timer also leads on review sentiment (78% vs 48%) and iOS requirement (13.0 vs 18.6). Interval Flow's advantage is ads (none vs shown) and update cadence (fortnightly vs every 4 months). On price, rating, ratings volume 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. Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Tabata & HIIT Interval Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Tabata & HIIT Interval Timer against 4.7 for Interval Flow. Both are backed by a comparable volume of ratings — 239 and 168 respectively. Written reviews are what separate them: 78% of Tabata & HIIT Interval Timer's written reviews are positive against 48% of Interval Flow's.

UpkeepUpdate frequency

Tabata & HIIT Interval Timer ships an update every 4 months, Interval Flow fortnightly. The most recent releases landed on September 30, 2026 and September 5, 2026 respectively.

Scorecard6 real differences · 4 level
Tabata & HIIT Interval Timer versus Interval Flow: the parameters behind the verdict, then further details
ParameterTabata & HIIT Interval TimerInterval Flow
PriceFreeFree
Rating4.8 (239 ratings) — better4.7 (168 ratings)
Positive reviews77.8% of reviews — better48.1% of reviews
Number of ratings239 — better168
Update frequencyEvery 4 monthsFortnightly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.6
Further details — not scored
Size48 MB20 MB
Age rating4+4+
DeveloperTakahiro ToriiBence Kaposzta

Customer experience

Tabata & HIIT Interval Timer

All ratings239 ratings
Positive97.1%
Neutral0.4%
Negative2.5%
Written reviews27 reviews
Positive77.8%
Neutral3.7%
Negative18.5%

Interval Flow

All ratings168 ratings
Positive93.5%
Neutral2.4%
Negative4.2%
Written reviews27 reviews
Positive48.1%
Neutral18.5%
Negative33.3%

In-app purchases

None

Tabata & HIIT Interval Timer

No in-app purchases

10 purchases

Interval Flow

Subscriptions8
  • 3 Month$4.993 Months
  • 1 Month$9.991 Month
  • 1 Month, 3 day trial3 Days trial$9.991 Month
Show 5 more
  • Annual7 Days trial$14.991 Year
  • 1 Year discounted$25.951 Year
  • 1 Year, 3 day trial3 Days trial$39.991 Year
  • 1 Year$39.991 Year
  • 1 Year Intro month1 Month trial$39.991 Year
One-time2
  • Free Lifetime subscriptionFree
  • Lifetime$24.99

Questions

Is Tabata & HIIT Interval Timer free?
Tabata & HIIT Interval Timer is free to download, with no in-app purchases.
Is Interval Flow free?
Interval Flow is free to download, with in-app purchases available.
Which has better reviews, Tabata & HIIT Interval Timer or Interval Flow?
Tabata & HIIT Interval Timer is rated higher. Tabata & HIIT Interval Timer averages 4.8 out of 5 from 239 ratings, while Interval Flow averages 4.7 from 168 ratings.
Do Tabata & HIIT Interval Timer or Interval Flow have ads?
Tabata & HIIT Interval Timer shows ads; Interval Flow does not.
Which is updated more often, Tabata & HIIT Interval Timer or Interval Flow?
Tabata & HIIT Interval Timer ships an update every 4 months, and Interval Flow fortnightly. Most recently, Tabata & HIIT Interval Timer was updated on September 30, 2026 and Interval Flow on September 5, 2026.

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