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Intervals - Interval Timer

By FourthFrame Technologies

This app is only available on the App Store for iOS devices.


YOU FOUND IT! The best interval training timer for iPhone, Apple Watch, and iPad. Track workouts and fitness data in Apple Health. Great for runners, HIIT, Tabata, Circuit training, and all types of interval training.

Simple, configurable, free, and reliable! Intervals is the most advanced interval workout timer, downloaded over 1 million times. Take interval training to the next level.

• Highly Customizable
• Standalone Apple Watch workouts. Leave your iPhone at home!
• Apple Health Integration. Save workouts, heart rate, calories, distance, pace, and route maps to Apple Health
• View an Apple Watch workout live on your iPhone!
• Spoken interval names, voice prompts, and customizable alert sounds
• Run in the background with the screen locked
• Play music or podcasts during your workout using the app of your choice
• Preconfigured templates for HIIT, Tabata, 7 Minute Workouts and more
• Bluetooth heart rate monitor support for Apple Watch or iPhone
• Fill your Activity Rings
• Workout History
• Backup your timers to iCloud
• Siri and 3D touch
• Share timers with friends
• Confetti, of course!

Intervals is an easy to use and modern iOS 11 and watchOS 4 interval timer for HIIT, Tabata and all interval workouts. You'll love using this carefully crafted app to guide you through any type of interval workout, including running, cycling, strength training, yoga, stretching, circuit training, boxing, MMA, elliptical, 7 minute workouts and many more.

Intervals is also used by thousands as a rehab timer, meditation timer, pomodoro timer, or music practice timer.

• Customize the Name, Duration, Alert and Color for each interval in your timer
• Customize Alert Sounds and Voice Prompts to guide your through your workout
• Set a Countdown Alert when the interval is about to end
• Set Warm Up and Cool Down intervals
• Set the number of times to repeat the interval workout
• Optional vibrations at the end of an interval
• Optional halfway alert
• Set target heart rate ranges for each interval

Intervals on the Apple Watch takes advantage of all the new fitness app capabilities in watchOS 4:
• Leave your phone at home and workout with Intervals on the Apple Watch
• Or view an Apple Watch workout live on your iPhone
• Configurable haptic alert countdown that taps you on the wrist when the interval is ending
• Track heart rate, calories and distance, and pace
• Route tracking for running, walking and cycling
• Pair an external heart rate monitor to your Apple Watch for use in Intervals
• Workouts contribute to the Apple Watch Activity Rings
• Workouts are saved to the Apple Activity and Health Apps. Also view past workouts directly in Intervals.

• Intervals has the best Apple Health integration of any interval training app
• Track heart rate, calories and distance, and pace
• Route tracking for running, walking and cycling
• All your data is safely stored directly in Apple Health

• Easily share your timers with friends to use

Get Intervals today and your workouts will never be the same!

What's New in Version 5.1

• Automatically Connect iPhone to Apple Watch. When you start an Apple Watch workout, a remove view of the watch will automatically be displayed on your iPhone.
• New True Black Theme for Interval Pro users.
• Bug fixes and improvements.


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Customer Reviews

Excellent product — Easy to use, efficient, simple.

Post surgical therapeutic exercises benefit from a simple, easy to use interval timer. This is the perfect app for that.
Its simplicity makes it a pleasure to use and actually insures that it does get used. More complicated apps may offer more functions but their complexity and clutter can make setup and use a pain.
No extra whistles & bells here. Just everything you need for basic interval training and nothing extra.

Love it!

I have been switching between my Garmin and the Apple Watch since there’s no way to create my own interval workouts on the watch. Now I can! Pretty easy and no waiting around to sync runs.

I have had no issues with battery drainage and the layout is easy to use. Looking forward to more goodies like splits and data. But so far it’s great!


Works great to sound alerts when you need to change intervals, etc. extremely buggy when using app on phone with your watch. You need to figure out correct sequence to get everything working. Very inconsistent at tracking distance properly even though everything is enabled and permissioned. Still haven’t found a better solution.

Intervals - Interval Timer
View in iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 5.1
  • Size: 36.3 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 11.0 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, 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, 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad (5th generation), iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro (2nd generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), 10.5-inch iPad Pro, 10.5-inch iPad Pro Wi‑Fi + Cellular, and iPod touch.

Customer Ratings

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Top In-App Purchases

  1. Intervals Pro$3.99

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