Comparison

Interval Timer vs Round

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

Head to head
About

Interval Timer

This app provides a customizable interval timer for various training routines, including HIIT and Tabata. Easily set up custom workouts, track your progress, and stay motivated with visual cues and audio notifications. It's suitable for a wide range of activities from fitness to productivity.

Highlights
  • Customizable workout setup
  • Progress tracking with calendar
  • Saveable custom presets
  • Color-coded notifications
  • Listen to music/audiobooks
  • Large, full-screen display
  • Widget for easy access
Features
Read full description

Interval Timer: Tabata and HIIT is a customizable timer for sports. Use it for High-intensity interval training and workout. It's a free sports interval timer app that makes it easy to create your custom training routine. Use it as your timer for training or exercise. This sports timer is great for crossfit, fitness and running. The sports timer will also be useful for various activities such as crossfit, jogging, boxing,circuit training,breathing exercises and yoga. You can use this circuit timer as a productivity timer to focus on your work tasks. Key features: Setup workout Tracking your progress Customizable presets Notifications & colors Motivation Listening music or books Huge digits Widget SETUP WORKOUT Set up, edit and save your own workouts with the customizable feature. Add as many intervals as you like. You can add a 10 second rest period and a 20 second work period, as well as a 5 second interval between exercises. TRACKING PROGRESS Track your workouts with a Calendar. Plan and track events, and get notified when you have a training scheduled. With this feature, you will not miss a single workout and will keep track of your progress. CUSTOMIZABLE PRESETS Save your workouts in the presets section. It's also possible to create your own custom intervals. You can add an unlimited number of presets. NOTIFICATIONS & COLORS Each training phase is easy to distinguish by a different color and is initiated by an individually adjustable signal (sound, vibration, voice) MOTIVATION Each completed exercise motivates you to achieve higher goals. Enjoy your training and achieve your fitness goals with the interval timer. LISTENING MUSIC Listen to motivational audiobooks or your favorite music and get inspired and energized. Full screen color coded display is easy to read from a distance. Widget helps you train without being distracted by the constant unlocking of your phone. Interval Timer: Tabata and HIIT is an easy to use sports workout timer for your daily fitness training at home, at the gym or everywhere else.

About

Round

This interval timer is designed for high-intensity interval training (HIIT), Tabata, and circuit workouts. It allows users to create custom routines with multiple exercises and track their progress. The app offers haptic alerts and can be controlled from an Apple Watch.

Highlights
  • Customizable interval routines
  • HIIT, Tabata, and circuit training support
  • Apple Watch control
  • Haptic alerts for round changes
  • Visual arc timer
  • Workout progress tracking
  • Apple Health integration
Features
Read full description

Round is a visual interval timer for HIIT, Tabata, circuit training, strength workouts, mobility, and stretching. TRAIN WITH 3D MOVEMENT GUIDES Choose from 71 exercises and see each movement in 3D while building your routine and while the timer runs. Side-specific and alternating exercises are handled clearly, so you always know what comes next. BUILD A ROUTINE IN SECONDS • Start with a ready-made template or build from the exercise catalog • Reorder, duplicate, edit, and delete steps directly • Add custom exercises with your own name and emoji • Set work, step rest, set rest, preparation, and number of sets STAY FOCUSED • Follow the 3D animation or switch to a larger remaining-time display • See your current step, progress, and upcoming lineup at a glance • Audio and haptic cues announce every transition WORKS WITH WATCH Control your workout from your wrist and receive haptic cues without reaching for your iPhone. TRACK YOUR PROGRESS • Sessions are logged automatically • Review total training time, streaks, and your most-used routines • Save workouts to Apple Health • Delete individual history entries whenever needed No account. No ads. Fully offline.

Screenshots

Interval Timer4 screens
Round4 screens

Verdict

The call

The clearest difference is rating: Interval Timer at 4.9 against Round's 4.0. Interval Timer also leads on ratings volume (391 vs 1) and iOS requirement (15.0 vs 17.2). Round's advantage is in-app purchases (none vs 10) and ads (none vs shown). 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. Interval Timer sells 10 in-app purchases, starting at $2.09 per month. Round asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Interval Timer holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Interval Timer has 391 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interval Timer ships an update monthly, Round every 8 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard7 real differences · 3 level
Interval Timer versus Round: the parameters behind the verdict, then further details
ParameterInterval TimerRound
PriceFreeFree
Rating4.9 (391 ratings) — better4.0 (1 ratings)
Positive reviews96.6% of reviews—
Number of ratings391 — better1
Update frequencyMonthlyEvery 8 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS15.0 — better17.2
Further details — not scored
Size112 MB35 MB
Age rating4+4+
DeveloperSimpleInnovation LLCRyosuke Nakayama

Customer experience

Interval Timer

All ratings388 ratings
Positive99.5%
Neutral0.3%
Negative0.3%
Written reviews321 reviews
Positive96.6%
Neutral0.9%
Negative2.5%

Round

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Occasional app crashes
  • Compatibility issues with older devices

Requested features

3 requests
  • More pre-designed workout routines
  • Ability to name and customize exercises
  • Option to adjust countdown time between intervals

Round

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Interval Timer

Subscriptions7
  • Timer PRO for 1 month: 30% OFF7 Days trial$2.091 Month
  • Timer PRO for 1 month: 25% OFF7 Days trial$2.291 Month
  • Interval Timer PRO for 1 month$2.991 Month
Show 4 more
  • Interval Timer PRO for 1 month7 Days trial$2.991 Month
  • Interval Timer PRO - 30% OFF7 Days trial$15.001 Year
  • Interval Timer PRO for 1 year$21.991 Year
  • Tabata Timer PRO for 1 year7 Days trial$21.991 Year
One-time3
  • Interval Timer - no Ads$2.99
  • HIIT Timer PRO Forever 30% OFF$27.99
  • Exercise Timer PRO Forever$39.99
None

Round

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Round free?
Round is free to download, with no in-app purchases.
Which has better reviews, Interval Timer or Round?
Interval Timer is rated higher. Interval Timer averages 4.9 out of 5 from 391 ratings, while Round averages 4.0 from 1 ratings.
Do Interval Timer or Round have ads?
Interval Timer shows ads; Round does not.
Which is updated more often, Interval Timer or Round?
Interval Timer ships an update monthly, and Round every 8 days. Most recently, Interval Timer was updated on November 3, 2026 and Round on October 31, 2026.

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