Comparison

Interval Timer vs VoiceHiit

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

Interval Run is a running interval timer for iPhone and Apple Watch. Create run/walk intervals, sprint sessions, and HIIT 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. Choose from 25+ ready-made running workouts or build your own. Follow intervals from the Lock Screen and Dynamic Island, and focus on your run. 25+ READY-MADE RUNNING WORKOUTS • Explore run/walk workouts, running intervals, sprints, hill repeats, tempo runs, fartlek sessions, ladders, pyramids, and more • Find workouts for speed, endurance, recovery, and different training goals • Start any workout immediately or customize it to match your training • Save your favorites to My Workouts for quick access BUILD YOUR OWN INTERVAL WORKOUT • Create simple run/walk intervals or advanced multi-step workouts • Add warm-up, running, walking, recovery, rest, and cool-down sections • Set a custom duration for every step • Repeat intervals and complete workout blocks • Add custom cues to guide you through each workout step • Build sprint, HIIT, cardio, and structured running sessions • Save multiple workouts and reuse them anytime • Preview the complete workout before you start VOICE & HAPTIC INTERVAL CUES • Hear clear voice announcements at every interval transition • Feel haptic cues when it’s time to run, walk, recover, or rest • Keep your workout active while your iPhone is locked or the app is in the background • Follow your current interval from the Lock Screen and Dynamic Island with Live Activities • Listen to music, podcasts, or audiobooks while you train RUN WITH APPLE WATCH • Sync workouts to Apple Watch • Start, pause, and control workouts directly from your wrist • Run phone-free with your workouts ready on Apple Watch • Follow interval progress without repeatedly checking your phone • Track heart rate, distance, and active energy during your workout • Get haptic interval cues directly on your Watch • Save completed workouts to Apple Health TRACK YOUR TRAINING • Browse completed workouts in calendar and history views • Review workout duration, intervals, distance, and active energy • Look back at your running and interval training over time • Share your workout results • Export and restore backups of your workout data MADE FOR RUNNERS WHO TRAIN WITH INTERVALS Whether you’re starting with beginner run/walk intervals, adding speed work to your weekly training, preparing for a 5K or another race, or creating a challenging HIIT session, Interval Run keeps every interval clear from start to finish. Use it as a simple run/walk timer, a running interval timer for speed training, an Apple Watch interval timer for phone-free workouts, or a flexible workout builder for more advanced structured sessions. From beginner run/walk workouts to sprints, tempo runs, hill repeats, fartlek training, and custom multi-step sessions, Interval Run adapts to the way you train. Start with one of 25+ ready-made workouts or create your own. Interval Run handles the timing so you can focus on your training. Some features shown, including the full workout library, advanced workout creation, multiple saved workouts, and full workout history, require Interval Run Pro. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

VoiceHiit

This interval training timer assists with HIIT, Tabata, and other interval workouts. It features voice counting for elapsed and remaining time, customizable settings, and automatic calendar recording of completed sessions. The display uses color to show training status, and it supports background operation.

Highlights
  • Voice counting for time
  • Customizable training settings
  • Automatic calendar recording
  • Color-coded status display
  • Background operation support
Features
Read full description

VoiceHiit is an interval training timer that is perfect for HIIT (High Intensity Interval Training), Tabata workout, and interval training.With a large display that shows the elapsed time  and the remaining time voice count, you can navigate your daily workouts well. ◆◇◆◇◆◇ App Features ◆◇◆◇◆◇ <Voice count of elapsed time and remaining seconds> The elapsed time (seconds) and remaining time (seconds) are always counted by voice. In addition to switching between female and male voices, you can switch between  counting up and counting down.Is possible. <Easy training settings> Training length, interval length, number of sets, count time before start immediately Can be set/changed. <Auto Calendar recording> When your training is complete, it will be automatically recorded on your calendar. When and what kind of training You can check immediately if you did. <Easy-to-understand color display> The training status is displayed in color. You can check the progress at a glance even  from a distance. <Background operation> It supports background operation that keeps counting even if the application is closed. <Specification> Training: 1-100 seconds Interval (break time): 1-100 seconds Number of sets: 1-100 sets Counting voice: Female (English) / Male (English) ============================================ <About the free version> *In the free version, ads are displayed.*Advertisements can be deleted by purchasing  the billing option. ============================================ ICONS by icons8(https://icons8.com)

Screenshots

Interval Timer4 screens
VoiceHiit4 screens

Verdict

The call

Interval Timer and VoiceHiit both sit at 4.5 stars, but that hides the real split: 75% of VoiceHiit's written reviews are positive against 21% of Interval Timer's. VoiceHiit also leads on update cadence (every 6 weeks vs every 3 months) and iOS requirement (13.4 vs 26.0). Interval Timer's advantage is ads (none vs shown) and ratings volume (534 vs 2). On price, rating, 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 VoiceHiit sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Interval Timer against 4.5 for VoiceHiit. That said, the two scores are not equally well evidenced: Interval Timer has 534 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 21% of Interval Timer's written reviews are positive against 75% of VoiceHiit's.

UpkeepUpdate frequency

Interval Timer ships an update every 3 months, VoiceHiit every 6 weeks. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
Interval Timer versus VoiceHiit: the parameters behind the verdict, then further details
ParameterInterval TimerVoiceHiit
PriceFreeFree
Rating4.5 (534 ratings)4.5 (2 ratings)
Positive reviews21.1% of reviews75.0% of reviews — better
Number of ratings534 — better2
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS26.013.4 — better
Further details — not scored
Size16 MB18 MB
Age rating4+4+
DeveloperRoma SosnovskyKENICHI YAMAMOTO

Customer experience

Interval Timer

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

VoiceHiit

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

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

VoiceHiit

Not enough reviews yet to summarise bugs or requests.

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
1 purchases

VoiceHiit

One-time1
  • Remove ADs$2.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is VoiceHiit free?
VoiceHiit is free to download, with in-app purchases available.
Which has better reviews, Interval Timer or VoiceHiit?
Interval Timer and VoiceHiit are both rated 4.5 out of 5 on the App Store, from 534 and 2 ratings respectively.
Do Interval Timer or VoiceHiit have ads?
VoiceHiit shows ads; Interval Timer does not.
Which is updated more often, Interval Timer or VoiceHiit?
Interval Timer ships an update every 3 months, and VoiceHiit every 6 weeks. Most recently, Interval Timer was updated on October 14, 2026 and VoiceHiit on October 9, 2026.

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