LOOK NO FURTHER, you have just found the most advanced interval timer on the App Store. Seconds has been downloaded over 3 million downloads, and has over 8000 5-star reviews. Other interval timers don't even come close when it comes to quality, features and ease of use. Now with Apple Watch support.


• Apple Watch
• Large clear display
• Templates for HIIT, Tabata, Circuit Training and more
• Custom timers to create any intervals imaginable
• Runs in the background
• Speaks your interval names in your language
• Coordinate music with intervals
• Bluetooth heart rate sensor support
• Universal app, works on all devices
• External display and AirPlay Mirroring support
• Cadence beeps


Seconds comes with an Apple Watch app that allows you to use your saved interval timers on your Apple Watch without your iPhone present. It also comes with a Quick Timer editor allowing you to easily and quickly create one-off timers while you are on the go.

The timing screen has a full width time display, in portrait or landscape mode, that can easily be read from a distance. The current and next intervals are displayed so you can see also what's up now and next. The entire background uses the current interval colour.

Seconds comes with interval timer templates for HIIT, Tabata and Circuit Training making it very easy to quickly create a timer for your workouts. You can create completely custom timers one interval at a time, or even combine interval timers together to create compound timers.

Seconds supports Bluetooth heart rate sensors and allows you to configure the display to show your current heart rate and estimated calories burned during your training session. (Fitbit not supported)

The text to speech option will speak your interval names with an option for advance warning. Alternatively, you can choose from the built in alerts. These ranges from simple beeps, to MMA air horns and boxing bells, to bells and gongs for more relaxing timers.

Seconds allows you to match the intensity of your music to the intensity of your workout. For each interval, you can select a song, album, artist, genre, playlist, podcasts or audiobooks. If this is not to your taste you can simply play another music source in the background.

Share the interval timers you’ve created or completed with your friends on your Twitter, Facebook or Weibo. They will then be able to import your interval timer into their app.

Transfer all your timers to another device of yours or a friends easily via Email or AirDrop.

Use AirPlay Mirroring to display your interval timer on a big screen. Perfect for personal trainers and fitness class instructors. Enable Privacy Mode so your personal or client timers are not displayed as you navigate the app.

Want an interval timer for the 7 minute workout, or Tabata. Seconds comes with these preinstalled as well as samples of the other timer types.

Seconds has been built from the ground up to support iOS 8 and work on all screen resolutions. You can run it in the foreground and disable the Auto-Lock, or run it in the background and have it play your alerts and send notifications when your intervals are complete.

Apple Health data is used to calculate calorie expenditure. Workouts or mindful sessions can be saved to Apple Health.

What's New

Version 3.7.1

- Added count up intervals.
- Added overrun interval to Apple Watch.
- Changed swipe direction for sharing online on the timer list.
- Changed swipe to delete to not delete with full swipe.
- Fixed alternating alerts not alternating.

Full release notes available at:

If you like Seconds and have a few moments an updated review is always welcome :)

Ratings and Reviews

4.8 out of 5

2.8K Ratings

2.8K Ratings

All You Need in a Fitness Timer app


I’ve been using this app for a few months now. It’s everything I could imagine needing in a fitness timer app. It is so versatile and so easy to customize. I’ve saved about a dozen of my own routines and it only takes a moment to program a workout found in a magazine or online. And once it is programmed, it’s there forever, whenever you need it. And with the sync feature, you can have it on all devices. I’ve even shared them with friends who have the app using the export feature.

Save your routines to a folder... or two... multiple versions even... It’s up to you. I make full workouts for my normal routine and abbreviated versions for when I’m pressed for time.

With all of my routines on hand at any given time, I have one less excuse for just getting one done. In fact, having this app has made me MUCH more consistent in my exercise regimen. I can’t say enough about it. Seven Stars! *******

Buy the Pro version!

THat Consulting

March 2018 Review Update
Have now realized that the app also easily connects to a basic Polar heart rate monitor. Add this to the total flexibility of the display layout, I now have the perfect device for interval training on my Nordic Trac. The electronics on my NT, which is over 20 years old, died many years ago, but Seconds Pro is obviously even better.

I've been using the free version for several years for everything from timing stretch routines to timing steaks on the grill. I never thought I needed the pro version.

Recently I thought I had identified a bug so I sent the developer an email, what did I have to lose. Not only did I get a personalized response confirming that the latest iOS version was causing a problem, but they also invited me to be a beta tester of the corrected Pro version.

Even the free version has so much flexibility and functionality available as far a setting up various routines, all of which you can use without looking at the app, as the text to voice capability is excellent. I'm now ready to set up and refine all of my routines, which because I have the Pro version I can now save.

Like I said I've use the free version for years, but if you use a timer regularly, I highly recommend forking out the money for the paid pro version. You will be glad you did.

Awesome app for fitness classes!


I've been using Seconds Pro for at least 5 years with Fitness Devolution group fitness classes. I like it because it allows me to coach individuals, correct form, or demonstrate without have to worry about the time, or reps or what we are doing. It also provides a consistent workout so my students can pace themselves and gauge their progress. I use it 3-5 times a week for 1.5 hours sessions and it has never let me down. Most of my students have bought the app to run my workouts at home.

I have about 30 workouts I've made ranging from 10-35 minutes long. They are easy to edit, or skip/repeat a section and the audio ducking tool works good when play music and the app at the same time. Highly recommended!


Runloop Ltd
38.9 MB
Health & Fitness
Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
Age Rating
Rated 4+
© 2010-2018 Runloop Ltd


  • Family Sharing

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

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