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  • Strengthiness Interval Timer screenshot 1
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  • Strengthiness Interval Timer screenshot 3
  • Strengthiness Interval Timer screenshot 4

About Strengthiness Interval Timer

Strengthiness Interval Timer is the easiest to use interval timer on the App Store. • Super easy setup • Multiple named sets • Unlimited intervals • Count rounds down to 0 or up until you decide to stop • Countdown timer gives you up to 10 seconds to prepare • Beeps and vibrates (on devices that support vibration) • Stopwatch accurate to hundredths of a second • Handy set counter for when you're not doing timed efforts You don't need fancy graphics. What you need is a simple timer that just works. Strengthiness Interval Timer is that timer; a simple app that does what it needs to and is easy to use. Strengthiness Interval Timer is perfect for all sorts of timed High Intensity Interval Training, whether it's the Tabata protocol, a CrossFit WOD, Sprint 8, Viking Warrior Conditioning, or any other type of interval training you may be doing. It comes with four built in examples and you can add as many different set lists as you want. A countdown timer gives you time to setup if you're working out alone. Loud beeps make it easy to use in a group setting, and different beep patterns differentiate the countdown, interval completion, and when the timer is finished. There's no fiddling with awkward time pickers or complicated setup screens, just type in the times you want. Ever forget that 180 seconds is 3 minutes? Stop converting in your head. Just enter the number of seconds you need and Strengthiness Interval Timer will do the math for you. Forgot your GymBoss® Timer? Strengthiness Interval Timer is the perfect stand in. Strengthiness Interval Timer includes a stopwatch function with an unlimited lap counter. Perfect for coaches or training partners working together. Doing sets that aren't timed? It can be easy to forget how many sets you've done while you're recovering, especially if you're counting breaths for breathing sets. Don't worry, the Set Counter has you covered. Just a single tap and Strengthiness Interval Timer will remember for you. Download it today and enjoy the simplicity and utility that is Strengthiness Interval Timer!

What’s new

Version 1.1.2 · Updated September 18, 2025

The classic Strengthiness Interval Timer back! Built with the latest tools and a few tweaks to ensure the app looks the same across different OS versions. Stay tuned for something completely new coming soon!

App privacy

The developer, Strengthiness, LLC, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Strengthiness Interval Timer

Looking for apps like Strengthiness Interval Timer? Here are 6 similar apps on the App Store. The highest rated is Traace (5.0/5), and 5 of the 6 are free to download.

Strengthiness Interval Timer vs. alternatives
App Rating Price Last updated Compare
Strengthiness Interval Timer 5.0 / 5 (1 rating) 0.99 USD September 18, 2025
Papanca – Free Sep 9, 2026 Compare
Momentum – AI Fitness Coach – Free Aug 30, 2026 Compare
Traace 5.0 / 5 (1) Free May 26, 2025 Compare
Standard Interval Timer 4.8 / 5 (183) 0.99 USD Oct 11, 2026 Compare
Tabata Timer - Fitness, Gym – Free Jun 20, 2025 Compare
WayFit - Fitness Tracker – Free Mar 28, 2024 Compare

Compare Strengthiness Interval Timer with the top alternatives: ratings, updates, ASO score and keyword gaps →