Gymboss Interval Timer

Contains adsIn-app purchases
4.9
3.9K reviews
Content rating
Everyone
500K+
Downloads
Content rating
Everyone
Digital Purchases
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About this app

The Gymboss Interval Timer app is a programmable interval timer perfect for any workout where timing is needed to time work and/or rest periods. You can time a single time interval, or multiple time intervals, and repeat them as many times as you wish. Perfect for running, HIIT, tabata, home workouts, boxing, weight lifting, stretching, or any other workout that requires timing.

This app incorporates all of the recommendations we have received over the years from our users to bring you the best app possible. Thank you for your input!

NOTE - This is a complete overhaul of the past Gymboss app, with an entirely new user interface, so any programs you have saved on any previous versions will be deleted upon updating.***
Updated on
Feb 12, 2026

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
Data can’t be deleted

Ratings and reviews

4.9
3.75K reviews
A Google user
January 22, 2019
I'm thrilled with this app- I found it pretty intuitive to use. It's better than I thought, in that I can save so many different combinations of intervals, name them and arrange them according to my daily training plan. The REALLY great cherry on top of the sundae is I can hear both the interval and my music app at the same time- even if I'm listening to loud, driving music. I liked the free version so much I upgraded to the add free to support the company.
23 people found this review helpful
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LB
July 21, 2025
Perfect... Not only can describe each individual interval With colors but also with names. The shadow coming down from the top showing you the remaining Time Is a great plus In addition to the remaining time innumerals. I have used other timers which are Good, But gymboss is great. I should have known As I have used the regular gymboss on the road for many many years!
1 person found this review helpful
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Wanda Allardice
April 16, 2026
I was enjoying this app, which is really helpful for setting Couch 2 5k intervals and not having to constantly check my watch. Three stars because it won't let me set an "end of workout sound" unless I set multiple rounds, meaning if I don't want to over-run I have to... check my watch. I just want one round of variable walk/run intervals but it's refusing to play ball and insists on "No Sound". No response from Gymboss when I messaged.
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What’s new

Fixes crashes, bugs, and includes performance improvements.