LOOK NO FURTHER, you have just found the most advanced interval training timer on the App Store. Seconds has been downloaded over 4 million times, and has over 13,000 5-star reviews. Other interval timers don't even come close when it comes to quality, features and ease of use.

Seconds is a paid app that you can trial for free. Non-paying users may only use the timers they create one time. If you do not mind the inconvenience of recreating your timers each time you need them, you can use the app for free for as long as you want. Alternatively, by upgrading you can use your timers as often as you like, and you will also be supporting the continued development of the app.


• Apple Watch
• Large clear display
• Templates for HIIT, Tabata, Circuit Training and more
• Custom timers to create any intervals imaginable
• Bluetooth heart rate sensor support
• Speaks your interval names in your language
• Loud or soothing alerts
• Coordinate music with intervals
• Universal app, works on all devices
• External display and AirPlay Mirroring support
• Runs in the background
• Supports iOS 8 and above


Seconds comes with an Apple Watch app that allows you to use your saved interval timers (upgrade required) 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 large time display that can easily be read from a distance. It works in portrait or landscape. The current interval and next interval are displayed so you can see also what's up now and next. The entire background uses the current interval colour so you don't even need to read the name.

Seconds comes with templates for HIIT, Tabata and Circuit Training making it very easy to quickly create a timer for your workouts. If you require more advanced options, Seconds doesn't let you down. You can create completely custom timers one interval at a time, or even combine 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.

The text to speech option will read out your interval names as you get to them, or even give you some 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 timers you’ve created or completed with your friends on your Twitter, Facebook or Weibo. They will then be able to import your 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 timers 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 a timer for the 7 minute workout, or Tabata. Seconds comes with these preinstalled as well as samples of the other timer types.

Apple Health data is used to calculate calorie expenditure. Workouts can be sent to Apple Health.

What's New

Version 3.6.5

Bug fixes and performance improvements.

## Version 3.6
- Added swimming activity with auto water lock.
- Added quicker UI refresh when Apple Watch wakes.
- Added low power mode option for Apple Watch (slower UI refreshes when Apple Watch wakes).
- Added a confirmation before starting timers when the app is not upgraded.
- Added links to support forum
- Added timer and settings export for forum
- Changed free version to only consider a timer used if it actually started.
- Changed external ducking option to also apply to Apple Watch app.
- Changed support section to link to Runloop forums.
- Changed Apple Watch required version down to 3.0
- Fixed restoring from iCloud not updating the timer list.
- Fixed bug where overrun interval of sub-timers was ignored.
- Fixed audio not playing when first interval had no audio, and starting at a different interval.

## Version 3.6.1
- Changed timer creation to no longer require save action.
- Fixed crash on devices running iOS 9 and below.

## Version 3.6.2
- Replaced Save and Discard buttons in Apple Watch summary with Done button. Saving is assumed.
- Fixed Apple Watch settings needing a toggle before taking effect.
- Fixed End Timer force touch option not respecting the skip to summary option.

## Version 3.6.3
- Added vibration only alerts to Apple Watch.
- Fixed resuming audio volume levels.

## Version 3.6.4
- Fixed Quick Timer alerts on Apple Watch.

## Version 3.6.5
- Added water lock option in Force Touch menu on supported devices.
- Added discard workout button to failed saves due to not granting permissions.
- Raised minimum iOS version to 9.3
- Removed email support. All support via forum from now on.
- Removed Snapchat link because I'm old and don't understand it.

Full release notes available at:

### Polite request

Since Apple introduced the new rating alert the app has received lots of good ratings. However, most of the people that take time to write a review are those complaining about the upgrade cost. If you have a few moments, we would really appreciate it if you could to write a quick review explaining what it is that you like about Seconds. Thank you!

Customer Reviews

4.7 out of 5

3.5K Ratings

3.5K Ratings

Instead of upgrading from free app, do this


For apple users: if you want to be able to share the app with family, do this: don’t upgrade the app in response to the ads. You won’t be able to do family sharing if you upgrade because apple sharing is not available for “in-app purchases”. Instead, purchase the Seconds Pro interval timer from the App Store. That way, the app can be shared with your family.

This is a great app, as many others have described in great detail in prior reviews. I won’t repeat the great features here, read the other reviews. I do a variety of circuit training and HIIT workouts and enjoy making up my own routines. The timer has helped me keep on time, which made my workouts more intense and efficient. I am very happy with this app and would buy it again. As it turns out I will buy it again since I can’t family share the upgrade. My daughter and husband both want the timer.

Great for repeated short workouts


I have been using this app for over a year. I started with the free version to be able to set up run walk intervals that my running partners could hear. The free version was fine for a simple interval that I didn't mind setting up each time.

I now use the paid version for more interval strength workouts. In the training plan I am using, each week we have a new short strength workout with 4 exercises that I need to do for a minute each. I can program these in using the voice prompt to remind me of what is coming up next. Now that I am going through the plan for a second time, I even have all of these workouts already set up and ready to go. I even set up a prompt at the beginning and end reminding me to start and stop my Garmin recording! It even works when I am listening to podcasts or music while doing the workout. It has been well worth the small investment!

The only timer you need


I've had dozens of timers on my phone over the years. But this is the only one that has the power, flexibility and simplicity to have earned and kept it's position on my phone's landing screen.

Seconds has dozens of features that I now have taken for granted and wonder why no one else has all of 'em.

Eg create folders for all your different timers for easy context and access (workout timers vs cooking timers vs boardgame timers etc).

Fully flexible speech so that you can be easily prompted what's next in a sequence.

And talking of sequences you can easily set up loops of time to repeat (eg Sprint/rest - do this 10 times) without having to enter it all manually.

If you really want to get creative you can set a timer within a timer within a timer etc for nested loops (I actually need this for one application). But you can quickly do something as readily as set a 3 minute timer for brewing coffee.

Creativity allows easy color coding.
Pragmatism shows with large easy to read displays that can be stopped/started/reset/repeated with easy pushes - nothing fiddly.

Support from the developer is amazing (as is his other app, Heavyset). All in all - this app does amazingly in a world in which literally hundreds of other apps simply fall short. Invaluable.


Runloop Ltd
38.5 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+
© 2010-2017 Runloop Ltd
In-App Purchases
  1. Upgrade to Pro $4.99


  • Family Sharing

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

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