Exercise Timer Resero
EMOM & Custom Interval Workout
Free · Designed for iPhone. Not verified for macOS.
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 Outdated design.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, 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.
Apple Health and Apple Fitness:
Your workouts are saved to Apple Health and count toward your Activity Rings.
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 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.
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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/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Thanks for using Resero! This version includes the following new features:
• Session Analytics: Resero timed your workouts. Now it understands them. Finish a session and see what your effort was really made of.
• Every Interval, Decoded: See how your heart rate answered each effort, where you worked hardest and the recovery you earned.
• Personalization: Set your date of birth, sex or max heart rate under Settings > Personalization to tune your heart rate zones and session insights.
• Feedback: Found a bug or have an idea? Write to us under Settings > Feedback.
The developer, Imarum GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Imarum GmbH
- Size
- 140.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Imarum GmbH