Comparison

Interval Timer vs Interval Timer □ HIIT Timer

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

Head to head
About

Interval Timer

Organize your running and high-intensity interval training sessions with ease. Quickly set up custom time intervals for running, walking, warm-ups, and cool-downs. Receive voice and vibration notifications for interval changes, and enjoy background music playback.

Highlights
  • Intuitive design
  • Customizable time intervals
  • Warm-up and cool-down timers
  • Voice and vibration notifications
  • Background music support
  • Foreground/background operation
Features
Read full description

Create custom run-walk intervals, HIIT sessions, and cardio workouts in seconds. Train with voice announcements and haptic cues, control workouts from Apple Watch, save sessions to Apple Health, and track your workout history. Set your intervals, hit Start, and focus on your workout—not the clock. CREATE YOUR CUSTOM WORKOUTS • Build warm-up, running, walking, and cool-down intervals • Customize each interval duration and repeat cycle for any training goal • Save multiple custom workouts for quick access • Preview your full workout before you start • Relaunch your favorite sessions in just a few taps STAY IN THE FLOW • Hear clear voice announcements at every interval transition • Feel haptic cues when it’s time to change pace • Keep your workout running while your iPhone is locked or the app is in the background • Listen to music, podcasts, or audiobooks while you train TRAIN WITH APPLE WATCH • Sync your custom workouts to Apple Watch • Start, control, and monitor workouts directly from your wrist • Train phone-free with workouts ready on your Watch • Track heart rate, distance, and active energy during your workout • Save completed workouts to Apple Health TRACK YOUR PROGRESS • Browse completed workouts in calendar and history views • Review total duration, intervals, distance, and active energy • Look back at your training over time • Share your workout results • Export and restore backups of your workout data BUILT FOR EVERY WORKOUT Whether you're starting a beginner run-walk program, adding sprint intervals to your training, preparing for a race, or building a focused HIIT session, Interval Run keeps you on track from the first interval to the last. Create your workout. Start running. Let Interval Run handle the timing. Some features shown, including multiple workouts and full workout history, require Interval Run Pro. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Interval Timer □ HIIT Timer

Create custom workout timers with adjustable intervals for exercise and rest. Track your progress with detailed history and statistics, and repeat past workouts easily. Enjoy audio cues without interrupting your music.

Highlights
  • Customizable intervals
  • Workout and rest timers
  • Voice or beep guides
  • Background audio support
  • Workout history and statistics
  • Repeat previous workouts
Features
Read full description

A simple and beautiful interval timer. 1. Drag to set your custom intervals for workout, rest, rounds, etc 2. Tap to start. Interval Timer doesn't interfere with your music or other apps: ∙ Listen to your music apps while you workout. ∙ Voice or beep guides for every workout. ∙ You can leave the app and still listen to the audio guides, in order to follow a workout you found online. And no need to manually record your workouts: ∙ Detailed history and statistics pages to track your progress. ∙ Repeat a previous workout from your history, so you don't need to set it again. If you have any ideas for how to improve the app, just tap "Contact Support' inside the app and let us know! We are always trying to improve Interval Timer This app includes an optional auto-renewable subscription (Premium Pass): Premium Pass beings with a free trial period, then an auto-renewable monthly subscription when trial ends. Payment will be charged to your Apple account at confirmation of purchase and will automatically renew (at the duration/price selected) unless auto-renew is turned off at least 24 hrs before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period. Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your Apple Account Settings after purchase. Any unused portion of the free initial period will be forfeited when you purchase a subscription. Privacy Policy: https://float.support/interval-timer/privacy Terms of Use: https://float.support/interval-timer/terms

Screenshots

Interval Timer4 screens
Interval Timer □ HIIT Timer4 screens

Verdict

The call

The clearest difference is review sentiment: Interval Timer □ HIIT Timer at 61% against Interval Timer's 21%. Interval Timer □ HIIT Timer also leads on ratings volume (86K vs 534) and rating (4.8 vs 4.5). On price, ads, in-app purchases and monetization model 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 3 in-app purchases, starting at $2.99 per month and Interval Timer □ HIIT Timer sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Interval Timer □ HIIT Timer holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Interval Timer □ HIIT Timer has 86K ratings behind it against 534, so its average is the more settled of the two. Written reviews point the same way: 21% of Interval Timer's written reviews are positive against 61% of Interval Timer □ HIIT Timer's.

UpkeepUpdate frequency

Interval Timer ships an update every 3 months, Interval Timer □ HIIT Timer every 5 weeks. The most recent releases landed on September 1, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus Interval Timer □ HIIT Timer: the parameters behind the verdict, then further details
ParameterInterval TimerInterval Timer □ HIIT Timer
PriceFreeFree
Rating4.5 (534 ratings)4.8 (86K ratings) — better
Positive reviews21.1% of reviews60.7% of reviews — better
Number of ratings53486K — better
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.015.6 — better
Further details — not scored
Size11 MB34 MB
Age rating4+4+
DeveloperRoma SosnovskyFloat Tech, LLC

Customer experience

Interval Timer

All ratings534 ratings
Positive86.9%
Neutral3.4%
Negative9.7%
Written reviews95 reviews
Positive21.1%
Neutral8.4%
Negative70.5%

Interval Timer □ HIIT Timer

All ratings85,854 ratings
Positive96.7%
Neutral1.2%
Negative2.1%
Written reviews1,810 reviews
Positive60.7%
Neutral6.2%
Negative33.1%

User reviews

Interval Timer

From 534 App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Customizable intervals
  • 🚀 Straightforward app
  • 👍 Works as advertised
  • 👍 Great for getting back into running

Room to improve

  • 🔇 No audio prompts when screen is locked
  • 🔋 High battery consumption
  • 🔒 Limited free version
  • 🐛 Inconsistent performance
  • 🔇 Voice prompts not loud enough

Interval Timer □ HIIT Timer

From 86K App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Customizable settings
  • 🚀 Intuitive interface
  • 🚀 Effective for HIIT workouts
  • 👍 Helpful voice prompts

Room to improve

  • 🔒 Requires subscription after limited free use
  • 🐛 Music volume issues with voice prompts
  • 🐛 Inconsistent behavior when switching apps
  • 🐛 Lack of final workout notification

Bugs and requests

Interval Timer

Reported bugs

4 issues
  • Timer resets or freezes during workout
  • Prompts not working when phone is locked or in pocket
  • Unexpected interval changes or duration changes
  • Compatibility issues with music playback

Requested features

6 requests
  • Option to pause/resume timer
  • Larger time remaining display
  • Apple Watch app
  • Ability to play audio prompts even with screen off
  • More interval options (run/walk/jog)
Show 1 more
  • Congratulatory audio cue at the end

Interval Timer □ HIIT Timer

Reported bugs

3 issues
  • Timer not always accurate
  • Favorites/saved workouts feature not working
  • Inconsistent behavior when pausing/resuming

Requested features

3 requests
  • Ability to save and name custom workouts
  • More flexibility in exercise/rest time settings
  • Option to adjust volume of voice prompts

In-app purchases

3 purchases

Interval Timer

Subscriptions2
  • Interval Run Pro Monthly$2.991 Month
  • Interval Run Pro Annual7 Days trial$19.991 Year
One-time1
  • Full Version$2.99
5 purchases

Interval Timer □ HIIT Timer

Subscriptions2
  • Premium Pass7 Days trial$1.991 Month
  • Premium Pass7 Days trial$2.991 Month
One-time3
  • Lifetime Pass$14.99
  • Lifetime Pass$19.99
  • Premium Forever Promo$29.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Interval Timer □ HIIT Timer free?
Interval Timer □ HIIT Timer is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or Interval Timer □ HIIT Timer?
Interval Timer □ HIIT Timer is rated higher. Interval Timer averages 4.5 out of 5 from 534 ratings, while Interval Timer □ HIIT Timer averages 4.8 from 86K ratings.
Do Interval Timer or Interval Timer □ HIIT Timer have ads?
Neither Interval Timer nor Interval Timer □ HIIT Timer shows ads.
Which is updated more often, Interval Timer or Interval Timer □ HIIT Timer?
Interval Timer ships an update every 3 months, and Interval Timer □ HIIT Timer every 5 weeks. Most recently, Interval Timer was updated on September 1, 2026 and Interval Timer □ HIIT Timer on September 24, 2026.

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