TimerNinja - Activity Timers
Heftii, Inc. Health & Fitness iPhoneiPadiPod touchMacApple Watch
TimerNinja - Activity Timers is a free Health & Fitness app for iPhone and iPad by Heftii, Inc. Rated 4.4/5 from 9 ratings. Requires iOS 26.0.
- Rating
- 4.4
- 9 ratings
- Price
- Free
- on the App Store
- Size
- 16 MB
- Age 4+
- Updated
- Sep 28
- 2026 · v1.14
Screenshots
About TimerNinja - Activity Timers
TimerNinja is the simple, flexible interval timer for workouts, training sessions, and any other timed activity — on iPhone, iPad, Apple Watch, Apple TV, Mac, and Apple Vision Pro. Start from a library of ready-made workouts — Tabata, EMOM, AMRAP, boxing and MMA rounds, running intervals, and more — or build your own in seconds. TIMERS FOR EVERY ACTIVITY • Stopwatch — count up, with an optional time cap • Timer — a simple countdown • Intervals — work/rest rounds • Multi-interval — chain interval groups together • EMOM — Every Minute On the Minute • Tabata — 20 seconds on, 10 seconds off • Pomodoro — focus and break cycles (Plus) • Custom — build anything with nested, repeating intervals (Plus) READY-MADE WORKOUTS • 31 presets across CrossFit, HIIT, combat sports, running, and focus • Benchmark WODs like Cindy, Chelsea, and Fight Gone Bad; Tabata and the 7-minute workout; boxing, MMA, and BJJ rounds; Norwegian 4x4 intervals; and box breathing • Start one right away, or save it and make it your own YOUR TIMER, EVERYWHERE • Live Activities keep your timer on the Lock Screen and in the Dynamic Island • Start your favorite timers from Home Screen and Lock Screen widgets • Control Center controls let you start, pause, and resume without opening the app • Siri & Shortcuts: start any saved timer or preset by voice, automate your routine, or put it on the Action Button on Apple Watch Ultra • Your saved timers show up in Spotlight search BUILT FOR APPLE WATCH • Run timers standalone on your watch, or use it as a remote control for the timer on your iPhone • Record workouts to Apple Health with heart rate and calories — just pick an activity type when you start • Follow your live heart-rate zone during a workout and see your time in each zone afterward (watchOS 27) • Watch-face complications and Smart Stack support put your timers one tap away ALWAYS IN SYNC • Saved timers sync automatically across your devices with iCloud • SharePlay keeps timers perfectly in sync with friends anywhere in the world — challenge them to a workout • Share any timer as a link; anyone can open it instantly, even without the app SOUNDS THAT CUT THROUGH • Clear countdown beeps, interval cues, and finish sounds • Spoken announcements that call out each interval by name (Plus) • Extra sound packs — Airhorn, Ruan, Taiko, Boxing Bell, and more (Plus) MADE TO BE GLANCED AT • A distraction-free full-screen timer you can read from across the gym • Beautiful light and dark themes for both the app and the timer screen • Localized into 11 languages TimerNinja is free to use. TimerNinja Plus unlocks the Pomodoro and Custom timer types, spoken announcements, and extra sound packs. New subscribers can try it free for 7 days. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.timerninja.com/privacy
Ratings & reviews
4.4
9 ratings
What’s new
Version 1.14 · Updated September 28, 2026
TimerNinja 1.14 brings a library of ready-made workouts, a new sound pack, and upgrades for iOS 27 and watchOS 27. PRESET LIBRARY • 31 ready-made workouts across CrossFit, HIIT, combat sports, running, and focus — from Cindy and Fight Gone Bad to Tabata, boxing and MMA rounds, BJJ matches, Norwegian 4x4, and box breathing • Start a preset right away, or save it to your timers and make it your own • Ask Siri: “Start the Cindy workout in TimerNinja” NEW SOUNDS • New Boxing Bell sound pack for Plus subscribers TIMERNINJA+ • New subscribers can try TimerNinja+ free for 7 days APPLE WATCH • See your live heart-rate zone during a workout, and your time in each zone when you finish (watchOS 27) • Reorder the intervals of a custom timer right on your watch (watchOS 27) WIDGETS & LIVE ACTIVITIES • New extra-large Starred Timers widget (iOS 27) and a medium QuickStart widget • Widgets now show the timer that’s running, with a live countdown • Widgets look great in the tinted and clear Home Screen styles • In the landscape Dynamic Island, the Live Activity now shows your interval progress as a ring (iOS 27) SIRI & SHORTCUTS • Siri phrases now work in all 11 languages • Siri can suggest the saved timers and presets you start most • New Shortcuts action to start any saved timer or preset (iOS 27) POLISH & FIXES • The timer screen now adapts to any window size, from iPad windows to iPhone Mirroring • Delete a saved timer right from its options menu • Fixed the Live Activity not appearing in the Dynamic Island when finish alarms were enabled • Fixed former subscribers being unable to subscribe again • More bug fixes and improvements
App privacy
The developer, Heftii, Inc., reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| TimerNinja - Activity Timers | 4.4 / 5 (9 ratings) | Free | September 28, 2026 | |
| Interval Timer ▸ HIIT & Tabata | 5.0 / 5 (9) | Free | Aug 5, 2025 | Compare |
| Center Meditation Timer | 4.7 / 5 (783) | Free | Oct 7, 2026 | Compare |
| HIIT timer chronometer gym | 4.4 / 5 (37) | Free | Jan 29, 2024 | Compare |
| Nuits: White Noise Soundscapes | 5.0 / 5 (16) | Free | Apr 15, 2024 | Compare |
| Next Up - Interval Timer | 4.7 / 5 (2,833) | Free | Feb 15, 2026 | Compare |
| Box Timer - Simple WOD Clock | 4.9 / 5 (2,969) | Free | Sep 19, 2026 | Compare |