Muscle Timer: Simple Workout

Contains ads
Content rating
Everyone
5+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image

About this app

Ever started your next set late because of your phone or a wandering mind?
Muscle Timer is a simple timer for exercise: set your interval and start working out. It's an interval timer built for workouts like weight training and interval training, with no complicated routines to build and no sign-up required. Set the time, tap START, done.

【 What you'll love 】
- Start instantly, just set the interval: Dial in minutes/seconds and tap START to begin your workout right away. Your last setting is saved automatically, so next time you just open the app and tap START.
- An interval timer with sound and vibration: Sound and vibration fire at your set interval, so you always know when the next set starts without staring at the screen.
- Traffic-light-style display: The numbers turn red starting 5 seconds before the end, then flash green at 0.
- Accurate even with the screen off or another app open: Sound and vibration alerts stay precise at the gym even when the screen is off or the app is in the background (runs on a foreground service).
- Start on the next full minute: Turn this on and, after you tap START, the countdown begins right at the next minute mark (:00) — handy if you like starting cleanly in sync with the clock.
- Alerts your way: Toggle sound and vibration independently, and adjust the alert tone volume.
- Ducks your music: If you're working out with music playing, the alert tone briefly lowers your music volume so you can hear it.
- Easy-on-the-eyes dark design: A clean dark screen that won't blind you in a dim gym, and the display stays on while the timer is running.

【 Recommended for 】
- Anyone doing weight training, interval workouts, or a home fitness routine who wants consistent rest time between sets
- Anyone who wants a simple timer: set a time and start your exercise immediately, without extra features to fuss with
- Anyone who wants to know the timing from sound and vibration alone, without watching the screen

Muscle Timer is a free app that requires no sign-up. The timer works without an internet connection. However, an ad (Google AdMob) may appear once a day when you stop the timer, and an advertising ID may be used to serve it. See the privacy policy for details.

Android is currently the only platform supported; an iOS version is planned for a future release.
Simple workout interval timer. Set your rest, tap START, get sound & vibration.
Updated on
Sep 30, 2026
Featured stories

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit
Content rating
Everyone
Learn more

App support

About the developer
염보성
byeom059@gmail.com
South Korea