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Interval timer for HIIT, Tabata and rounds. Countdown beeps and voice cues over your music, screen locked, unlimited free sessions, no ads — ever.

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Seconds Interval Timer
Discover KoAppStudio's mobile apps for fitness, health and everyday life. Meet KO Interval Timer, our custom workout timer for boxing, HIIT and circuit training.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | intertakt.com | koappstudio.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Armenia · 1 - 9 employees | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Intertakt is an interval timer for HIIT, Tabata and rounds that keeps running with the screen off or the phone in your pocket. Countdown beeps and voice cues play over your music, and sessions survive calls and app switches without resetting. Free tier offers unlimited workouts with no ads, while...
A flexible interval timer for boxing, HIIT, circuit training, stretching and anything else that works in rounds. Create your timer, choose your cues and keep a record of every session.
What each product offers, as listed by its team.


No features have been listed yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Intertakt and KO Interval Timer.
Intertakt's answer
Most timers act like they're the main character of your workout. Intertakt acts like equipment: set it once, press start, forget it exists until it speaks. No ads interrupting your rounds. No subscription — you buy it once, the way humans buy kettles. Your playlist keeps playing. And when a call comes in, the round waits for you, not the other way around.
Intertakt's answer
People who train without an audience: home HIIT at 6 am, gym rounds, kettlebell circuits in the garage, a 4-minute Tabata between meetings. If your phone is face-down and your hands are busy — congratulations, you're the target user.
Intertakt's answer
Every timer asks for your eyes at the exact moment you physically can't give them. That's it. That's the whole bug report. Intertakt is what happens when you fix it properly: offline-first, cues over your music, a session that survives reality. Built by Vlad Kovnerov.
Intertakt's answer
Flutter, an offline-first architecture, and an unhealthy attention to audio timing. Plans are plain JSON — your training data is never held hostage.
Intertakt's answer
Intertakt's answer
Intertakt assumes you have better things to do mid-set than stare at a timer. So it doesn't need the screen. At all. Voice and beep cues ride over your music, the session survives a phone call and resumes from the exact second — and it's fully offline. Take it to the mountains where there's no signal. It was made for exactly that. 0 ads. 0 accounts. 1 tap.
Share your experience with using Intertakt and KO Interval Timer. For example, how are they different and which one is better?
When comparing Intertakt and KO Interval Timer, you can also consider the following products.

Seconds Interval Timer includes templates for HIIT, Tabata and circuit training, text-to-speech, music per interval, vibrate full screen display and much more.
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Interval Timer is a mobile application that helps you stay consistent in your workouts.
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Exercise timer is an app featured with an interval timer and AMRAP stopwatch that helps you in recording your training interval of HIIT training, yoga, biking, Tabata, and gym accurately.
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A free interval timer for boxing, HIIT, EMOM, Tabata and anything measured in rounds. No account, no install: it runs on a phone, a laptop or a gym TV.
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Privacy Friendly Interval Timer supports the user during his/her circuit training session and helps him achieve his/her training goals.
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