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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

Worth paying for

Definitely work paying for you set the timer to do all sorts of on and off session intervals. Great tool.

Love it!

This app is the best! I initially gave it 2 stars after the last big update bec. I had issues but Runloop promptly responded to my email and fixed my issues.

Best custom timer out there!

I love being able to create and manage my own workouts from this app! It’s perfect for when I’m doing my own HIIT or circuit training AND for when I teach HIIT classes! You can also pair a heart rate monitoring device with the app too! It’s pretty cool and super user friendly.

Great Workout Logging

Simple to use. Has lots of features (supersets, drop sets, timers, rep max, etc). Best features ? Built in detailed reports and the ability to export the data. Worth the money for the full version ($13.99). Tried Jefit, Fitbod & Strong, this was the clear winner for me.

So useful

This is great for at hike work outs so worth the 7 dollars


Worth every cent...best in store.
I love the voice tone ,,speed and being able to completely control most sounds.
No bugs.
Timers are easy to set up just the way you want.
Please add more alarm tone sounds.

Highly flexible timer with great watch app

This timer is so easy for me to setup all my gym routines with intervals, spoken word etc.

In addition, and this has happened in the last 6mths, the developer has improved the Apple Watch timer such that I use it every day. Each morning I get up and do my stretches after showering. Initially with the old watch OS all timers got recorded by apple as exercise (rings, etc) but now I can have my stretches not count to this time (just changed category). Its great as I have my watch on taptic and not ring so my wife is woken up when I do the stretches.

Love this

So easy to figure out. UI is perfect for me. Keeps me accountable and on track with my workouts. Love that I can sync with playlists.


As of today-4/10/2018, this is the best timer I have ever seen.

Great app

I have used this app for about a year and still using it now after trying may others.
Easy to use with all the right options available.
Over all the best of the lot.
Thank you.

Always improving

Pro version is worth the money.
I love the new "count up indefinitely" feature which gives you time to combine timed cardio intervals with counted-rep intervals.

Overcharge - I’m dumb

Great app! I chose to pay the $9.99, but I just got charged for $24.83. Make this right.

Edit - I’ve read your response, and you are correct. You did not overcharge me at all. I apologize for my mistake. Thank you!!