You concentrate on your workout, Chronic will take care of timing! Anyone who is serious about working out knows that the key is a routine.

Chronic by definition is "Of long duration, continuing or recurring event" and thats what the app is about. Its a simple routine timer that allows you to run through your personalized routine.

Chronic is designed for:
- Workouts
- High Intensity Interval Training (HIIT)
- MMA, boxing, BJJ, martial arts, yoga or any other forms of exercise that alternate between periods of work and rest
- Running, jogging or CrossFit

You can use Chronic in your workout to increase:
- Aerobic endurance
- Cardio endurance
- Muscle strength, size and endurance
- Fat loss

Chronic will make any workout:
- Easier to plan and execute
- More accuracy and consistent

Core features:
√ A beautiful Apple Watch app so you can track your routines from your wrist.
√ Fully customizable routines
√ A run tracker feature with a gorgeous fully size map and route markings
√ Text-To-Speech feedback so you know where you are in the routine (Haptic feedback on Apple Watch)
√ A quick timer feature (time selector up to the second)
√ Routines run in the background with notifications
√ Reminder notifications so you never miss a workout
√ Integration with the Health app and Activity Rings so your workouts count
√ 3D Touch support with home quick actions
√ Optimized for iPhone, iPad (portrait and landscape) and Apple Watch

Other use-cases:
- Cooking with the simple "Quick Timer" feature
- Practicing timed tests, presentations or even simply timing yourself between studying and resting.

Health App
We have added integration with the health app, that means all your workouts will now be saved and available on the Health app (If available on your iDevice and you authorized it). Upon completion of your workout, Chronic will save your workout in the health app and update your activity rings. If you stop your workout halfway, we will prompt you with a messaging asking to save the workout so nothing is lost.

* Continued use of GPS running in the background can dramatically decrease battery life

What’s New

Version 3.1.10

Minor bug fixes

Ratings and Reviews

4.6 out of 5
45 Ratings

45 Ratings

fnm69 ,

Great Interval Timer

I have downloaded multiple interval timers and this is one of the best. It is extremely easy to setup and I really like the big number so I can read it even without wearing my glasses. I practice Yoga on a regular basis and this app is very helpful when creating routines with multiple asanas. I have routines with over 100 asanas and the app works perfectly. This is my new favorite app when it comes to exercise. Currently, I am using it for my yoga, meditation, HIIT, among many others and it works great.

Most importantly, I have been searching for a native interval app for my Watch. I have downloaded mostly all of then and this one is very close to my all my needs. There have been some minor issues but the developer has been working intensively to finding the right fix. I have never obtained such a great support like the one I am getting from Mr. Ace. He has been very responsive by answering emails and phone calls.

I am looking forward to future updates. Keep the good work!

Bgalls88 ,

Needs work! Not enough features

Giving it 2 stars. Here’s why. I found it difficult to create and edit the workouts ie. Circuit training with 1 minute rest tomorrow periods in between. Also the audio didn’t work to alert me when the next interval was starting/ending. You can’t skip ahead to the next interval if you want to start in the middle. Lastly it randomly stops playing and didn’t save the workout ☹️

iMessiah ,


I got to use app for a few days and I gotta tell you I'm pretty disappointed that this is what I get for the 4 dollar purchase of the Pro version. First of all, once you launch the chronic app the watch automatically stops the workout running in the Workout app. So there's no way to actually get to track the workout if I choose the use the Chronic timer. Now, while you're running a timer in the Chronic app and you put your hand down you no longer get that nice 3 second Haptic notification at the end of the timer. The timer counts down without actually giving a notification. You have to put your hand up to check on the counter. That makes the timer absolutely worthless. On top of all that, the layout for the phone app is very primitive. With apps like Tabata and other top notch timers out there that cost a fraction of the price of this app, it makes no sense how this app is charging 4 dollars just to set up a circuit AND still have to see ads on there!

I generally have no problems for paying for apps. I know these apps take lots of time from developers to create, troubleshoot, and update for OS changes and that time is not free of course. I didn't hesitate buying it once it was explained to me that it would probably do what I need it to do. But after using it I honestly feel ripped off that this is what I paid for.

The 1 star goes for the outstanding customer support I got from the creator of the app. Unfortunately, the app itself doesn’t deserve any.


Ace Green
49.7 MB
Health & Fitness

Requires iOS 10.3 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7-inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5-inch) Wi‑Fi + Cellular, iPad (6th generation), iPad Wi-Fi + Cellular (6th generation), iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro (12.9-inch), iPad Pro (12.9-inch) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi-Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi-Fi + Cellular,and iPod touch.


English, German, Italian, Simplified Chinese, Traditional Chinese

Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© Chronic
In-App Purchases
  1. Apple Watch $2.99
  2. Ultimate Package $3.99
  3. Remove Ads $2.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

  • Siri

    Get things done within this app using just your voice.

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