Comparison

Interval Timer vs Exercise Timer Resero

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 timer for high-intensity interval training (HIIT), Tabata, and other workout styles. It offers clear visual cues and sound notifications to guide users through work and rest periods, allowing them to focus on their exercise. Users can save routines, set reminders, and integrate with music playback.

Highlights
  • Customizable work and rest intervals
  • Sound cues for phase transitions
  • Background operation
  • Landscape mode support
  • Save custom routines
  • Workout reminders
  • Clear phase color indicators
Features
Read full description

Set your work and rest intervals, press start, and focus on your workout. PureHIIT is a simple timer for HIIT, Tabata, EMOM, circuits, and boxing rounds. • Adjust work, rest, and round settings to suit your session. • Follow sound cues as you move from one phase to the next. • Keep listening to your music while you train. • Use the timer in the background or in landscape mode. • Start with a prebuilt routine or save your own. • Set workout reminders to help you keep a routine. Getting started is simple: choose a routine or set your intervals, check the number of rounds, and press start. Clear phase colors help you see when to work and when to rest. Free to download, with optional in-app purchases. Apple Watch features require Premium. On Apple Watch, the app integrates with Health to record heart rate and energy used. Make time for your next workout with PureHIIT. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Exercise Timer Resero

This app provides a customizable interval timer for various workout types, including HIIT, Tabata, and EMOM. It offers a workout library, progress tracking, and integration with Apple Health and Apple Watch for detailed analytics.

Highlights
  • Customizable interval workouts
  • Workout library
  • Progress calendar
  • Apple Watch integration
  • Apple Health sync
  • Rep-based intervals
  • Ad-free experience
Features
Read full description

No control. Outdated design. Ads everywhere. Sound like your current timer app? Resero is the one exercise timer you need, from a quick 10-minute home workout to fully custom training. Resero is modern, clean and built to grow with you. Squeeze in a short HIIT session in your living room, or take fine control over every rep, set and round the way athletes and coaches do. Your goals won't wait, so why should you? EVERYTHING YOU NEED IN ONE APP A Timer That Just Works: Big, clear and easy to read from across the room, in portrait or landscape on iPhone and iPad, for HIIT, Tabata, EMOM, circuits and much more. Your Own Routines: Build workouts from scratch and set every interval, rep, set and rest period exactly how you train. A Workout Library for Every Level: Ready-to-go workouts from beginner to pro. Pick one and start in seconds, or tweak it to fit you. NEW! Workout Analytics with Apple Watch: See your heart rate zones, training load and recovery after every session, so you know exactly how hard you worked. Your data stays on your device, private to you. Requires an Apple Watch paired with your iPhone. Apple Health and Apple Fitness: Your workouts are saved to Apple Health and count toward your Activity Rings when you train with iPhone and Apple Watch. Good to know: Analytics, Apple Health and the Apple Watch app need an iPhone with a paired Apple Watch. On iPad, you get the timer, library, custom workouts, sub-timers and progress calendar. Resero stands for REps, SEts and ROunds, the building blocks of every workout. WHY YOU'LL KEEP USING IT Apple Watch App: Start, pause and skip intervals from your wrist, with live heart rate and calories. Sub-Timers and Rep-Based Intervals: Count reps instead of seconds. Swap 60 seconds of push-ups for 12 push-ups at your own tempo: 1s down, 2s hold, 1s up. Resero guides you through every rep for perfect tempo control. Plays Nice with Your Music: Resero lowers your music during cues, then brings it right back. Runs in the Background: Change a song or answer a text without stopping your timer. 100% Ad-Free: No pop-ups, no banners, no interruptions mid-workout. Progress Calendar: Every session is logged automatically, so you can watch your progress grow week by week. Made for Sweaty Hands: Big buttons you can hit mid-workout without looking twice. BUILT FOR EVERY DISCIPLINE HIIT & Tabata: Set your work-to-rest ratios and go. EMOM & Circuit Training: For solo sessions or leading a group class. Boxing, Kickboxing & MMA: Custom round lengths, rest periods and warning bells. Strength & Calisthenics: Exact rest countdowns between your sets. Running, Pilates & Yoga: Simple intervals for runs, holds and flows. HOW IT WORKS No gym? No time? No plan? No problem. 1) Pick a workout from the library or build your own. 2) Train hands-free on your iPhone, iPad or Apple Watch. 3) Check your stats and watch your progress grow. Every fitness journey starts with one workout. Make yours today, even if it's just 10 minutes at home. Resero times every interval, so all you have to do is show up. Download Resero, because your best shape starts now, one workout at a time. --- Terms of Service: https://www.reseroapp.com/en/terms-of-service/ Privacy Policy: https://www.reseroapp.com/en/privacy-policy/ Legal Notice: https://www.reseroapp.com/en/legal-notice/

Screenshots

Interval Timer4 screens
Exercise Timer Resero4 screens

Verdict

The call

The clearest difference is in-app purchases: Exercise Timer Resero at none against Interval Timer's 7. Exercise Timer Resero also leads on ads (none vs shown) and review sentiment (100% vs 73%). Interval Timer's advantage is ratings volume (297 vs 3) and iOS requirement (15.0 vs 17.0). On price, rating, update cadence 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 7 in-app purchases, starting at $3.99 per month. Exercise Timer Resero asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Exercise Timer Resero holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interval Timer has 297 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 73% of Interval Timer's written reviews are positive against 100% of Exercise Timer Resero's.

UpkeepUpdate frequency

Interval Timer ships an update fortnightly, Exercise Timer Resero every 3 weeks. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Interval Timer versus Exercise Timer Resero: the parameters behind the verdict, then further details
ParameterInterval TimerExercise Timer Resero
PriceFreeFree
Rating4.8 (297 ratings)5.0 (3 ratings) — better
Positive reviews73.3% of reviews100.0% of reviews — better
Number of ratings297 — better3
Update frequencyFortnightly — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, Apple Watch
Requires iOS15.0 — better17.0
Further details — not scored
Size45 MB55 MB
Age rating+44+
DeveloperMiklos PavelImarum GmbH

Customer experience

Interval Timer

All ratings297 ratings
Positive96.0%
Neutral1.7%
Negative2.4%
Written reviews15 reviews
Positive73.3%
Neutral6.7%
Negative20.0%

Exercise Timer Resero

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Interval Timer

Reported bugs

2 issues
  • Advertisements still present after paying for removal
  • App requires premium to start timer (recent change)

Requested features

8 requests
  • Remove the cap on rounds
  • Add a background click feature (e.g., every second)
  • More sound options
  • Option for more than one workout
  • Add a halfway beep
Show 3 more
  • Add a countdown for the workout interval
  • Beep once at 15 seconds for a 30-second workout interval
  • Countdown the last 3 seconds of a workout interval

Exercise Timer Resero

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Interval Timer

Subscriptions2
  • Monthly$3.991 Month
  • Yearly7 Days trial$19.991 Year
One-time5
  • Remove Ads$1.99
  • Custom sounds$1.99
  • Premium features$4.99
Show 2 more
  • Premium features$9.99
  • Premium features$14.99
None

Exercise Timer Resero

No in-app purchases

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is Exercise Timer Resero free?
Exercise Timer Resero is free to download, with no in-app purchases.
Which has better reviews, Interval Timer or Exercise Timer Resero?
Exercise Timer Resero is rated higher. Interval Timer averages 4.8 out of 5 from 297 ratings, while Exercise Timer Resero averages 5.0 from 3 ratings.
Do Interval Timer or Exercise Timer Resero have ads?
Interval Timer shows ads; Exercise Timer Resero does not.
Which is updated more often, Interval Timer or Exercise Timer Resero?
Interval Timer ships an update fortnightly, and Exercise Timer Resero every 3 weeks. Most recently, Interval Timer was updated on November 6, 2026 and Exercise Timer Resero on November 5, 2026.

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