Comparison

Exercise Timer Resero vs HIIT Timer

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

Head to head
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/

About

HIIT Timer

This interval training app provides voice-guided workouts for Tabata, EMOM, Circuit, and custom routines. It allows users to focus on their exercises without constantly checking their screen, with features like saved workouts and workout history.

Highlights
  • Voice announcements for workout cues
  • Multiple training modes (Tabata, EMOM, Circuit, Custom)
  • Save and replay custom workouts
  • Workout history tracking
  • Independent sound, haptic, and voice controls
  • Music integration with voice cues
Features
Read full description

HIIT Timer is a fast, focused interval timer for people who want to train, not fiddle with settings. Pick a mode, hit start, and let the app call out every work and rest period so you can keep your eyes off the screen and on the set. FOUR WAYS TO TRAIN Tabata. Classic high intensity intervals with ready made protocols. EMOM. Every minute on the minute. Name your exercises, do your reps, rest whatever time is left. Circuit. Set your stations, work time, rest time, and rounds, then go. Custom. Build your own workout from scratch. Name every exercise, set work and rest for each one, reorder them, and choose your rounds. BUILT FOR REAL WORKOUTS • Voice announcements call out each exercise, so you never look at your phone mid set • Type your times directly, or tap to adjust, whichever is faster • Save any workout and start it again in one tap • History tracks completed workouts, total minutes, and exercises done • Sound, haptics, and voice each turn on or off independently • Your music keeps playing, cues mix over the top • Screen stays awake through a workout • Optional pause when you leave the app • Dark mode COMPLETELY FREE No ads. No subscriptions. No paid unlocks. No account to create. Every feature is there the moment you install. YOUR DATA STAYS YOURS HIIT Timer collects nothing. Your workouts, history, and settings live on your device and nowhere else.

Screenshots

Exercise Timer Resero4 screens
HIIT Timer4 screens

Verdict

The call

The clearest difference is iOS requirement: HIIT Timer at 15.1 against Exercise Timer Resero's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Exercise Timer Resero ships an update every 3 weeks, HIIT Timer fortnightly. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

Scorecard1 real difference · 9 level
Exercise Timer Resero versus HIIT Timer: the parameters behind the verdict, then further details
ParameterExercise Timer ReseroHIIT Timer
PriceFreeFree
Rating—4.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size112 MB37 MB
Age rating4+4+
DeveloperImarum GmbHANNR Studio

In-app purchases

None

Exercise Timer Resero

No in-app purchases

None

HIIT Timer

No in-app purchases

Questions

Is Exercise Timer Resero free?
Exercise Timer Resero is free to download, with no in-app purchases.
Is HIIT Timer free?
HIIT Timer is free to download, with no in-app purchases.
Do Exercise Timer Resero or HIIT Timer have ads?
Neither Exercise Timer Resero nor HIIT Timer shows ads.
Which is updated more often, Exercise Timer Resero or HIIT Timer?
Exercise Timer Resero ships an update every 3 weeks, and HIIT Timer fortnightly. Most recently, Exercise Timer Resero was updated on October 13, 2026 and HIIT Timer on September 29, 2026.

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