Comparison

HIIT Timer vs Exercise Timer Resero

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

Head to head
About

HIIT Timer

Features
Read full description

Train smarter, not harder โ€” with your personal interval trainer. Build your perfect interval timer for HIIT, boxing, or strength & cardio training. Customize every detail โ€” from sets and rest to sounds and colors โ€” for your ideal rhythm. Features โ€ข Custom Workout Setup โ€“ Freely adjust the number of sets, workout and rest durations, and round counts. โ€ข Fully Personalizable โ€“ Rename stages, assign colors, and fine-tune timing for each phase. โ€ข Clean, Distraction-Free Interface โ€“ Focus only on your workout without unnecessary elements. โ€ข Dark & Light Modes โ€“ Switch easily based on your environment or time of day. โ€ข Alarm Sound Options โ€“ Choose from multiple clear tones or add your own custom sounds. โ€ข Background Music Compatibility โ€“ Alarms work seamlessly with your favorite playlists. โ€ข Save Unlimited Profiles โ€“ Store all your routines and access them anytime. Clarity, rhythm, and control โ€” everything you need to stay consistent and motivated. Start now. Train your way.

About

Exercise Timer Resero

Features
Read full description

The only Exercise Timer you need. Resero is a premium interval timer built for athletes, coaches, and anyone serious about their fitness. RE-SE-RO stands for REps, SEts, and ROunds. Whether you want to build complex custom workouts from scratch or jump straight into pre-built routines, Resero adapts to your exact training style. What Makes Resero Different NEW! Premade Workout Library: Skip the setup and dive straight into training. Pick from professionally structured routines across Tabata, EMOM, HIIT, and combat sports or customize any library workout to fit your exact goals. NEW! Apple Watch Companion App: Complete wrist control. Start, stop, and skip intervals hands-free without touching your phone. Monitor real-time heart rate and active calories while contributing directly to your Apple Activity Rings and Apple Fitness details. Fully Customizable: Stop trying to force your routine into a rigid, basic timer app. Build your workout from scratch and customize every single interval, rep, set, and rest period exactly how you train. Smart Audio Cues: Never miss a transition or drown out your music. Resero automatically dims your audio background during cues, then seamlessly restores the volume. Fully Customizable: Build every interval, rep, set, and rest period with total precision. Runs in the Background: Change your music track or answer a text without interrupting your timer or audio cues. 100% Ad-Free: Zero video pop-ups, zero banner clutter, and zero mid-circuit interruptions. Automatic History Log: Completed sessions are saved automatically to your in-app calendar and synced with Apple Fitness to track your long-term consistency. Clean, High-Visibility Interface: Modern, ergonomic design featuring massive buttons built for effortless tapping while mid-workout and dripping with sweat. Built for Every Discipline: - HIIT & Tabata: Fine-tune high-intensity work-to-rest ratios. - Boxing & MMA: Set custom round lengths, rest periods, and warning bells. - Weightlifting & Calisthenics: Track precise lift sets and recover with exact rest countdowns. - EMOM & Circuit Training: Streamlined for solo gym sessions or leading full group fitness classes. How it works: 1) Choose or Build: Grab a ready-to-go routine from the workout library or build your own from scratch. 2) Train & Sync: Go hands-free on your iPhone or Apple Watch while tracking heart rate and calorie burns. 3) Track: Review your calendar history, close your activity rings, and build lasting consistency. Ditch the outdated timers. Download Resero today and give your workout the precision it deserves. --- 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

HIIT Timer4 screens
Exercise Timer Resero4 screens

Verdict

The call

The clearest difference is in-app purchases: Exercise Timer Resero at none against HIIT Timer's 1. HIIT Timer's advantage is update cadence (weekly vs every 3 weeks) and iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. HIIT Timer sells 1 one-off in-app purchase. Exercise Timer Resero asks for nothing beyond the download.

UpkeepUpdate frequency

HIIT Timer ships an update weekly, Exercise Timer Resero every 3 weeks. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

Scorecard3 real differences ยท 3 level
HIIT Timer versus Exercise Timer Resero: the parameters behind the verdict, then further details
ParameterHIIT TimerExercise Timer Resero
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, Apple Watch
Requires iOS13.0 โ€” better17.0
Further details โ€” not scored
Size44 MB112 MB
Age rating4+4+
DeveloperJunhyong ParkImarum GmbH

In-app purchases

1 purchases

HIIT Timer

One-time1
  • Pro Upgrade$1.99
None

Exercise Timer Resero

No in-app purchases

Questions

Is HIIT Timer free?
HIIT 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.
Do HIIT Timer or Exercise Timer Resero have ads?
Neither HIIT Timer nor Exercise Timer Resero shows ads.
Which is updated more often, HIIT Timer or Exercise Timer Resero?
HIIT Timer ships an update weekly, and Exercise Timer Resero every 3 weeks. Most recently, HIIT Timer was updated on September 10, 2026 and Exercise Timer Resero on September 9, 2026.

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