***Free and reliable. Perfect for use at home, at the track or in the gym.

We’re proud to introduce this handy little app that helps you keep track of your work and rest periods during workouts. Whether your into cycling, running, lifting weights, exercise, workout, stretching, boxing, MMA or HIT, this interval timer will prove to be an invaluable asset to you.

Running foreground, background or with device locked, this reliable app allows you specify an overall time as well as program High/Low intensity interval and rest time between sets.

Key Features:
- Customizable sets, high/low intensity interval and rest for your own need
- Retina display, iOS4 and multitasking
- Continue to run even when screen is locked
- Play your song or playlist during your workout
- Post your workout to Facebook or Twitter
- Save settings as templates

Customizable Features:
- Number of Sets
- Countdown Time
- Set Time
- Low Interval time
- High Interval time
- Rest Time
- First Interval (low or high)
- Sound Volume
- Timer Sounds
- Auto Lock
- Vibrate
- Pause during Rest
- Playlist
- New Each Set

-Interval Timer can use Apple Health to show heart rate in Apple Watch App.

# Subscription Details #
- Monthly and annual subscriptions are available.
- Payment will be charged to your iTunes account at confirmation of purchase.
- Your subscription will automatically renew unless auto-renew is disabled at least 24 hours before the end of the current subscription period.
- Automatic renewals will be charged at the same price you were originally charged for the subscription.
- Subscriptions can be managed by going to Account Settings on the App Store after purchase.
Terms of Use:
Privacy Policy:

What’s New

Version 4.5.1

Hello folks!
The word for today’s update is Stability.
We’ve slain a large number of bugs that should result in a more stable, more predictable Interval Timer for everyone.

We'd love to hear your feedback! If you have any ideas or feature requests for future versions of the app, feel free to let us know. Please reach out to us at

Ratings and Reviews

4.5 out of 5
9.2K Ratings

9.2K Ratings

Mynga ,

Love it. Simple to use. Awesome

I was looking for a basic and simple to use app that acts like a 30sec timer for my exercise routine. This app is awesome! I was able to easily customize it to count down and ding every 30seconds. I liked how it changed colors every 30 seconds cuz sometimes my volume is muted so I can glimpse at the color change to kno that it’s times up. I love the display on my iPhone, its not cluttered like some other apps. I’m soooo happy I found this app after trying out many others and i like how it’s free :) I’m definitely gonna recommend this to my friends. Some negatives: it costs money to add this to my Apple Watch, so I’m just going to use the free iPhone app version instead (until I win the lottery haha). I don’t like the ads. And last complaint is, I wish the music controls on iPhone was larger. Some positives: I love how i now push myself to workout harder and longer cuz i try to keep up w the timer. And I like how I can now focus on breathing rather than Focusing on counting. Love this app!! Thank u developer for making me healthier and more motivated to workout :-)

JudasFrank ,

A Disappointing Downfall

This app used to be good. So good. Almost too good to be true but unfortunately things have changed for the worse in very saddening ways. The Trump ads don’t bother me, as much I dislike him I couldn’t care less about his ads, but other changes are extremely frustrating. No longer can you have this app open while playing audio in another app without sound stopping every 5 seconds (due to ads apparently), no longer do timer sounds work properly when the app is open in the background and no longer do the developers seem to care at all about providing a product with some semblance of consumer satisfaction. The worst part, however, is that this is still the best app of it’s kind on the App Store. So until a better one comes along, I guess I’ll have to suffer through this one.

Shneor ,

Good App with Intrusive Video Ads and Deceptive Seller

The app has annoying video ads as of late, but is otherwise very good.

I've been using the app for years to time and track my daily physical activity routines. However, every now and again the seller decides it's time to try and milk it a bit more, and pushes out an update that adds more aggressive ads, and it's never in the update description, of course. For instance, the December 2019 (version 4.2.1) update added video adds at the end of every routine, but the update description was "We are happy to introduce a new in-app purchase to let you remove the Ads. Removing the Ads is just an option for those users hope to remove it and not mandatory. It doesn't change the way you used Interval Timer before. Just grab what you need. This new version is worth you update because we also fixed some bugs to make it more stable."

It is possible to circumvent the video ads by turning off cellular data for the app and disconnecting from WiFi, but it's far from ideal.


Deltaworks Limited
61.6 MB

Requires iOS 9.3 and watchOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
In-App Purchases
  1. Premium - 1 Month $1.99
  2. Premium - 1 Year $9.99
  3. Plus - 1 Month $0.99


  • Family Sharing

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

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