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The smart workout log for strength training at the gym.

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Seconds Pro - Interval Timer

Seconds is an extremely popular, and highly versatile interval timer app for High Intensity Interval Training (HIIT), Tabata and circuit training workouts.

Download Seconds for free on iOS or Android and try all it's features. A one time in-app purchase for the Seconds Pro upgrade will allow you to save your timers rather than recreating them each time.

Download Seconds Interval Timer on the App Store Download Seconds Interval Timer on Google Play

Templates for HIIT, Tabata and circuit training

Seconds comes with templates for common interval programming allowing to build advanced timers in a matter of moments.

If the templates do not fit your needs you can use the custom timer to build your timer one interval at a time. You can even combine and loop through many timers using the compound timer.

Speaks your interval names

Often when working out you just want to keep your phone in your pocket and get on with it. But if you are doing a circuit involving many intervals how do you remember what's next?

Seconds will speak your interval names, so this is never a problem. There is even an option to let you know what the next interval is so you have time to prepare before it starts.

Soothing alerts

If you are looking for a mediation or yoga timer text-to-speech or high pitch beeps may not be appropriate. For situations like these Seconds comes with more soothing alerts such as bells and gongs, or you may wish to have no alert sounds at all, or just a vibration. All these options are available.

Music the way you like it

Seconds provides plenty of options for how you listen to your music while you workout. A few options include:

  • Assign songs to intervals
  • Play a playlist throughout a set
  • No music during your breaks
  • Shuffled album throughout the entire timer

Of course, if none of those suit you, you can simply listen to your favourite music player in the background and Seconds will play it's alerts over the top.

Import and export your timers

Importing and exporting timers from Seconds Pro could not be simpler. Just select the timers you wish to share and hit Export. Timers can be sent via email or AirDrop (on iOS devices).

Timers can even be shared with friends that don't have the app via the web sharing function. Once shared, an online timer will be created for anyone to use on any device.

Runs in foreground or background.

Seconds Interval Timer will continue to alert you of interval changes whether in the background or the foreground.

Color code your intervals

Colored intervals are great when you just need a visual clue to see which interval you are on and what is coming up next. Seconds displays the the whole screen in the current intervals color, apart from the next interval which uses it's own color.

Seconds has 10 colors to choose from with an advanced option to customize the colors if you wish.

Vertical and horizontal timer display

Seconds utilises all the available width for the main timer display so it's easy to read at a glance. By default it displays the interval time remaining, but can be configured to show total time remaining, or elapsed times.

Recent Customer Reviews

use every day

for glaucoma eyedrops needin eyes
closed for 20 seconds

for timing planks


Simple & easy to use with no unnecessary complications!

Fantastic timer!

The customization for timers is awesome and the latest interface update for iOS 11 is gorgeous. Highly recommended!

Watch telly do Physio

Love this app as I don't have to count on my head anymore!

Easy to use and very customizable, lots of options

I've used this app for a long time with my classes and it's so easy to use and set up.

Simple and necessary!

The design is simplistic and the app is add free - what a dream! This is a great way for me to mindlessly stay on track while foam rolling before a work out.


Simple to use and effective!

The help you need!

Amazing, simple app!
Like a personal HIIT trainer in your pocket!


Been using this app for over 5 years and use it at least 3 times a week. Could not be without it. 💪


I use it every time I go to the gym (only if you purchase the full version), I love that I can tailor and routine and they're all there when I want them at the gym, all I use now


Simple idea well executed, high price tag for an app but if you want to structure and discipline your interval workouts it's very much worth it.

(Stick some emojis in the exercise names and use the text to speech function if you feel it's important to have a good laugh during your workouts!)

Great HIIT timer!

Simple to use, effective app - even if you stick with the free version.
It has brought me plenty of muscle burning interval training pain! 5 stars.