The best interval timer app for IOS just got even better! Downloaded by over 100,000 awesome people just like you, Intensity is the workout companion you’ve been looking for. 

*** Now with Siri Shortcuts all new for iOS 12 ***

Before we tell you more, have a look at what people are saying:

“This makes HIIT effortless. You don't have to think about what songs to play or how many intervals you have done, it does it all for you.

“I downloaded this app to help with home tabata workouts and it is just what I was looking for. I love having my own playlist to keep me going through a tough workout!”

“What more could you want then your own personal music & timers to keep you moving!”

You love HIIT because it’s a quick workout style that you can easily fit into your daily routine. We agree, and would hate to see you squandering your valuable time screwing around with a lame, hard to use timer app. That’s why we built a workout timer so easy to use, even your technology-challenged family member of choice would adore it.

Download and get started in seconds with built-in curated workouts. Go deeper with the flexibility of the best workout builder on the app store, adding your own custom intervals, rests, warm-up/cool-down,  caloric burn, and music selection. Speaking of music, have it your way with tunes from your own music library or use music from other apps, Intensity runs in the background so you can continue your routine even while using other apps or putting your device to sleep. Subtle sound queues and text-to-speech interval  announcements will guide you through each workout. And of course, we know how important it is for you to make progress towards your fitness goals, so we’ve added a workout log as well as easy integration with the iOS health app.

Intensity - Your workouts, your way. 

What’s New

Version 10.1.1

This update contains the following fixes:

- Fix an issue where music wouldn't play back.
- Fix an issue where song metadata was incorrect.

Ratings and Reviews

4.1 out of 5
21 Ratings

21 Ratings

Forinsteve ,

Wrong song

It’s an awesome app, but the album artwork and song name show the previous song instead of the current song playing. Please fix!

55555jj ,

Excellent app is still excellent (shocker)

Have been a big fan of this app for a number of years now. The refresh took me by surprise but all of the features I really cared about carried over into the new version (being able to add entire playlists to the app, it playing while minimized/using other apps/texting) and that still makes it a winner for me. Adding Siri support is pretty neat, though I have yet to try it. Glad to see the app support continuing from the developer, the dollar I spent on this for the paid version is the best money I've spent on a phone app - thanks guys!

Kuza007 ,


I love using this app for my karate workouts! Helps keep the intensity up with voiced encouragement and it calls out the intervals! One question I have three or so separate workouts on the app and was wondering if there were anyway to integrate them all into one big workout?


Atlantia Software LLC
39.3 MB
Health & Fitness

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, German

Age Rating
Rated 4+
© 2018 Atlantia Software LLC


  • Family Sharing

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

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