HeavySet Logo
The smart workout log for strength training at the gym.

Download on the App Store

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

Great timer

I paid for this app and glad I did I really like this timer great features!


It is what it is.

I’ve been using second pro for over 5 years. I have a ton of different workouts with music saved on the app. It has been my most consistent workout tool I own. All my workouts are time specific including the rest in between sets. I never have time to mess around. As a result, my workouts are grueling but effective. I even design workouts with my seconds pro app. If you have a goal and need to utilize your time efficiently, use this app and go do it, no excuses. Matched with a good workout plan and diet, you’ll get the results you want.


Everything I was looking for

Great app for timing all sorts of workouts. I had to read the manual some to figure everything out, but that is only because this app is so powerful. My daughter is getting in shape to apply to a service academy and we are using this app to train for the various tests.


Perfect for timed exercises

I use this for a series of timed stretches and it is so much easier than resetting the timer on my phone or trying to watch the stopwatch. This allows me to concentrate on form while it handles the timing.

Very easy to set up and use! Wish I had found it sooner.


Very convenient

If you take your cell phone everywhere you go it means you can work out everywhere you go with SecondsPro


Love this Timer! ❤️

Using the “Seconds” timer has really helped me stay focused on my workouts and has made planning my workouts incredibly easy! It’s fun to customize and color code the timers, and I can hook this up to my Bluetooth speaker and play music in the background during my workout.
Simple, Easy and Fun!


Worth the money to me

See above


Exactly the app I was looking for!!!!

Have used this app for a week so far and it has all the features I was looking for in a timer!!! Have not found anything I don’t enjoy about this app. It’s easy to use and set up.

Customer service for the app is great too - quick to respond!


Great simple gym log

I am new to weights and gyms and this simple app both reminds me what to do next and logs my progress.


Awesome!

This app is seriously awesome for anyone that enjoys interval, HIIT, or circuit training!! You can customize every time to even say which exercise you’ll be doing! I just started using it and I’m so excited to explore it more and more!


Always is. Always has been reliable.

I will continue to use this app as long as it runs as smoothly as it has since day 1.


I use this app all the time

I’ve used this app for a few years on my iPhone. Here is why I like it:

- super easy to customize my workouts
- ability to have app time my workout or meditation without a pre-set ‘times up’ indicator
- app supports color (which is my preferred method of denoting intensity or effort to exert)
- app tells me when I’m halfway through a particular exercise and when to switch from right to left
- different options for tones and countdowns
- easy to group my workouts
- handles in coming calls with ease
- works with the apples iHealth