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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


I like how I can make this app work for me instead of trying to fit into someone else’s routine. I am not the most tech savvy middle aged woman, but I figured this out very quickly. Worth the $$.

Search section

I wish that there is a search option so I can find my workouts by typing the name or some of their letters.

Great app and use it everyday

Great app and use it everyday

Simple app to get the job done!

Was introduced to this app by Youtuber Jenn Im and I love it! It's super easy to use, nothing complicated about it. Great for beginners like myself! I actually paid for the premium version and I would say it was worth it if you use it often

Love this App!

This App hold me accountable while using it. I love that fact that I can keep my timers and have music with them for motivation !



The only app I’ve ever used for this kind of thing

This is the only app I have ever needed for weightlifting. I only want to put word of caution out there: if it’s not broken, don’t fix it! In other words, this is really great as is, so please don’t change it too much!

Perfect workout timer

App works great and has several options for workout timers, whether you are doing HIIT, Circuit training, etc. I’ve used this for anything from running to weight lifting circuits. It’s simple to use and it will even read off the next exercise in the circuit for you, so you can continue your workout uninterrupted!

Only complaint is that you have to buy the upgrade to be able to save your timers.

Excellent app

I like this app. The best timer app I have. I decided to purchase this one. I only purchase the best ones for me.

Solid app

I love this app and it’s flexibility but I have few minor suggestions that I think would make the app more functional. I wish you could be able to pin or place an exercise at the top of the progress section so I don’t have to scroll through all of the exercises to find one I am focused on. Also I wish it was easier to change mistakes when I accidentally log the wrong info instead of having to go through several screens to Change a number. Also I think it should be easier to write a note on the log screen like up weight or tough reps.

On the whole this is a great app and would recommend to anyone.

Of all the lifting logs...

This one takes the cake. I’ve tested multiple weight training logs for an extended period of time and have made the simple conclusion that Heavy Set. It takes a few days to get the hang of it, but once you get a grasp on the user interface it’s smooth sailing. After you conduct a specific lift three times, it will begin graphing your progress for that lift. This allows you to see your progress easily. IM A HUGE FAN OF HEAVY SET.

Only suggestion is that we can add notes to each individual sets.

Get the paid version- so worth it!

I love this app! It works with the watch and workouts are so much more amazing now. The countdowns pulse on your wrist, the voice is in the headphones and overlays on the music. The screen shows you what’s coming up In case your starting a new regimen and haven’t memorized what’s next. It takes your pulse and syncs with Apple Health. Can’t say enough good things!