Martial Arts Gyms
Put your timer on the big screen.
Display a full-screen timer on your gym wall via Apple TV. No laptop required.
Interval timer for athletes & coaches
Your gym.
Your rhythm.
Your timer.
The multi-platform timer app built for martial arts gyms, CrossFit coaches, and serious athletes. Tabata, EMOM, intervals and more.
Download on the App Store
iPhone · iPad · Apple Watch · Apple TV · Mac · Apple Vision Pro
Your old timer app has two modes: start and stop.
TimerNinja has eight.
Pick your weapon.
Your gym wall.
Now a timer.
TimerNinja runs natively on Apple TV. Plug in, launch, and your gym has a full-screen interval timer on the big screen. No laptop, no HDMI dongle, no browser tab.
Athletes see the countdown from anywhere in the room.
Everything you need to run any timer.
Eight timer types. One app. Every Apple platform.
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Tabata
20s work / 10s rest × 8 rounds. Battle-tested.
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Intervals
Fully configurable work/rest cycles for any sport.
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EMOM
Every Minute On the Minute — the coach's favourite.
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Countdown
Simple single countdown with audio cues.
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Stopwatch
Count up with optional time cap.
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Custom
Build any interval sequence you can imagine.
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Pomodoro
Focus/break cycles for training and study.
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Sound Packs
Beeps, airhorn, speech cues, glockenspiel.
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SharePlay
Sync live with training partners via FaceTime.
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Apple Watch
Real-time sync with heart rate and calories via HealthKit.
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Siri & Shortcuts
Start timers by voice, or from the Action Button on Apple Watch Ultra.
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Deep Links
Share timer configs as URLs. Perfect for coaches.
Available now.
Everywhere.
TimerNinja runs natively on every Apple platform. One purchase, all your devices.
- iPhone Available
- iPad Available
- Apple Watch Available
- Apple TV Available
- Mac Available
- Apple Vision Pro Available
Built for serious training.
CrossFit & Functional Fitness
Build your WOD exactly how you programme it.
EMOM, Tabata, custom intervals. Start it with your voice.
Personal Trainers & Coaches
Share configs, not instructions.
Send a timer link to any client. They tap it, the timer opens. No tutorial needed.
What's next.
We're always building. Here's what's on the roadmap.
- Branded timers — overlay your logo or background onto the timer
- Music integration (Spotify, Apple Music)