Cero is the interval timer you were waiting for! It will enhance your workouts: HIIT, Tabata, running, yoga, WOD, strength training, MMA, stretching, circuit training, boxing...
INTUITIVE AND EASY TO USE
A neat design and a hugely intuitive interface to make your User Experience absolutely great!
SIMPLE AND ADVANCED TIMER MODES
Two different timer modes. Set them up in just a few seconds. You'll be able to choose between the simple mode (the most popular and easy to configure). Or the advanced one, which is thought for those of you who need a highly customized experience.
CLEAR INTERFACE
Everything is thought to give you the maximum customization in your timers, without driving you crazy.
CREATE YOUR OWN CUSTOM INTERVALS
You'll be able to create your own intervals. Just choose the icon it represents the most, the color, and the calorie expenditure level.
SAVE MULTIPLE WORKOUT TIMER SETTINGS
Just create and save as many timers as you need, without limitations!
AVAILABLE FOR YOUR APPLE WATCH
Cero is also compatible with Apple Watch, and it even has a heart monitor! Great for all those outdoor activities that require having the count of intervals.
CALORIE TRACKER
The calorie expenditure of each workout will be saved into Apple Health automatically!
SYNC BETWEEN DEVICES
Cero automatically syncs your timers and settings across all your devices! Forget about having to configure, again and again, your interval timers.
PEOPLE LOVE CERO!
With a 4.8 stars average worldwide and tens of thousands of users using it frequently!
"The High-Quality Timer I needed. Man, this is such a well made app. Intuitive, simple when it needs to be, complex (but not complicated) when needed as well."
-Bobthetheman
"Great app! Cero keeps me on track toward my fitness goals. Download it. Use it. See the change."
-Karina_Soto
"Great HIIT timer! Wonderful app with beautiful UI, easy to use, and maintained by an attentive developer. Keep up the good work"
-mjeshurun
"Everything you need from a timer. This app is simple and gives me everything I was looking for. Great timer for HIIT training."
-Hubert Z.
Feedback and suggestions: support@cero.app
Best app I have found so far. It’s free and has a lot of settings. I only have 1 high/low intensity timer programmed in, so I dont know how many you can have without upgrading. But I only needed 1.
Developer Response
Thank you so much for feedback! 💚
Loved but last iOS messed it up
Baseballcurt35
This was an excellent app, however the last iOS update messed it up. Now when I start my workout (activate apple’s workout app) then start my Cero app, like I always did, the Apple workout app overrides the Cero app and Cero stops counting down (happens after the watch goes into sleep mode). The only way I can get it to work is to restart everything, turn off the watch, then turn it back on. Before the last update this was a 5 star app for sure!
Developer Response
Thanks for your feedback Baseballcurt35!We are preparing a new version for the end of June. This version will have fixed this issue and other useful features that will do Cero to be again a 5 stars app for you 😉
Perfect app for my HIT workout.
SpideyMike
This app is great - the timers are easy to set and it works perfectly for my routines. Easy to change and add more workout timers - can even name them (squat thrusts or whatever). If you like high intensity workouts you must get this app!!
Developer Response
Thank you so much for your feedback! 💚
Love it
EmoEric87
I love this app. I 100% recommend but not if they start charging a subscription or any of that ridiculous. Exactly what you need to hiit, or any kind of intervals at all.
Developer Response
Thank you for your feedback EmoEric! 💚
- Solve minor issues
Version 3.7.3
In-App Purchases
Cero Pro
Remove ads and get additional features
$3.99
The developer, Flawless Studio LLC, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Flawless Studio LLC
Size
38 MB
Category
Health & Fitness
Compatibility
Requires iOS 12.0 or later.
iPhone Requires iOS 12.0 or later.
iPad Requires iPadOS 12.0 or later.
iPod touch Requires iOS 12.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
