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Seconds Pro - Interval Timer for HIIT, Tabata and Circuit Training

By Runloop Ltd

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LOOK NO FURTHER, you have just found the most advanced interval training timer on the App Store. Seconds has been downloaded over 2 million times, and has over 7000 5-star reviews. Other interval timers don't even come close when it comes to quality, features and ease of use.


• 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


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.

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.

What's New in Version 3.1

As with any update the app rating gets reset so please rate the app again if you like it. Occasionally after a workout you may be prompted to leave a rating. If this offends you, rather than rate the app badly, just turn this feature off in the settings and you will not be bothered. Hope you enjoy the update!

Version 3.1

- Added: iOS 9 split screen support.
- Added: Apple Health support.
- Added: new URL scheme to launch timers from other apps (details in Help)
- Added: option to randomize circuit training template and Tabata template.
- Added: remote control functionality.
- Added: 'album art' for lock screen showing now and next intervals (only works with internal audio).
- Added: audio selection at a timer level is back.
- Added: alternating beep alert.
- Added: an opt-out setting for rating requests. The app needs ratings though so please don't.
- Added: average and max heart rates to display options.
- Changed: timer will exit upon ending in the background to preserve battery.
- Changed: sub-timers end alerts don't play.
- Changed: second interval of split to exclude from count.
- Changed: iPad help to open fullscreen.
- Fixed: durations displayed in the list for circuit and compound timers.
- Fixed: crash when trying to paste into empty folder when using the popup menu.
- Fixed: crash when trying to email support via help pages.
- Fixed: halfway alerts playing at start of intervals with an odd number of seconds.
- Fixed: initial heart rate display.
- Fixed: calorie calculation bug.


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Customer Reviews

Just what I was looking for

I had various timer apps before this one, but I had a vision of one that I could completely customize. I wanted to be able to name my rounds, and set specific lengths of time to each round. Low and behold, I found this app. I started on the free one, but I really wanted to be able to save my workouts so I could pull one up that I'd created at any time, hit play and just go. It is a great tool in my fitness tool belt, and honestly it's like having a personal trainer. The timer is telling me what workout to do next, and how long to do it. I create minimal rest intervals as rounds in my timers. I can't say how happy I am with it and how much it has been pushing my home workouts for the days that I don't lift or play ball. Thanks!

So incredibly useful!

This app is so flexible, it does everything I want. It has a bunch of built-in timers like tabata, and you can build simple custom timers like a set of 10 rounds, 30 seconds each, with 5 second breaks. And then there's super-custom timers, where you can set a specific time, color, name, and sound for each segment of a set, as many segments as you want. When I am wearing headphones, the sounds come through them, but other than that the app does not mess with whatever music I have playing in the background. You can also set a vibration instead of a sound. Both at the gym and doing physical therapy, I haven't found a situation that this app can't handle.

Perfect - but not the new update!!!

So I need a lot of custom timers for my workouts and this nails it. I can create anything and love the fact that you can lock the screen before you start the timer. The only thing that happened that was frustrating was that I'd forgotten where one of the timers was so I emailed the developer and he pointed me in the right direction--then I felt stupid but it's all good now! Love it!

Updated: The app looks fantastic, but--the update lost all my saved timers! Can I get them back from somewhere? I can't rate this 5 stars anymore; only 2, because I'll probably have to re-create all my timers! Not cool!

Seconds Pro - Interval Timer for HIIT, Tabata and Circuit Training
View In iTunes
This app is designed for both iPhone and iPad
  • $4.99
  • Category: Health & Fitness
  • Updated:
  • Version: 3.1
  • Size: 7.7 MB
  • Languages: English, French, German, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.

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