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Interval Timer · HIIT & Yoga icon
Supports Duo

Interval Timer · HIIT & Yoga

Duo support is reported in the linked sources. The specific fold interaction and real-device behavior have not been independently verified.

Guram Kajaia · Health & Fitness · Free

View on the App StoreSave

iPhone screenshots

Interval Timer · HIIT & Yoga — iPhone screenshots 1
Interval Timer · HIIT & Yoga — iPhone screenshots 2

How it uses iPhone Duo

Duo support is reported in the linked sources. The specific fold interaction and real-device behavior have not been independently verified.

What’s New

Version 1.1 ·

Interval Timer now builds routines for you with AI. Describe the workout you want, like "20 minute full body with dumbbells", and it picks the exercises, sets the work and rest, and fills in the cards as it generates them. This runs on Apple Intelligence and needs a device that supports it. It's completely free and there is no need to create account.

About this app

Build any interval workout in a minute, or describe it and let AI build it for you — free, no account. Then put your phone down and train — the timer handles the countdowns, the cues, the music, and your history.

App Store descriptionWritten by the developer.

Build any interval workout in a minute, or describe it and let AI build it for you — free, no account. Then put your phone down and train — the timer handles the countdowns, the cues, the music, and your history. Boxing rounds, HIIT, Tabata, yoga flows, kettlebell circuits, mobility sessions — one timer runs them all, on iPhone, Apple Watch, Apple TV, and any AirPlay-compatible screen. Live heart rate on the iPhone and on the TV when you cast. One-time purchase. No subscription. No ads. No tracking. $4.99 at launch, $7.99 regular price. Pay once and the app is yours — every feature, every device, forever. Built for everyone who's tired of timers that pause your music between intervals, lock saved routines behind a paywall, or interrupt your workout with full-screen ads you can't close. — BUILD ANY WORKOUT — • Custom routine builder: stack cards of work intervals and rest • Drag to reorder • Large library of exercise icons so every card is recognizable mid-set • Color-coded cards: lime, coral, lavender, peach, mint, sky and more • Built-in gallery of HIIT, Tabata, cardio, mobility, combat, sports, and outdoor routines — clone and customize — DURING THE WORKOUT — • Full-screen live timer with a preview of the next card • Configurable pre-roll "get ready" countdown • Audio cues at halfway, ten-seconds-out, and final three seconds • Per-card cue overrides — silence individual phases without touching the rest • Distinct haptic patterns for each cue — feel timing through gloves or headphones • Keep-screen-awake setting • Pair an Apple Music playlist to a routine — plays, pauses, resumes alongside the timer • HealthKit logging with the right workout type (HIIT, strength, yoga, cycling, and more) — HISTORY & STATS — • Seven-week activity heatmap. Tap any day to drill in. • Current and all-time-best streaks; total sessions; total minutes • Full session history — completed, abandoned, or paused — APPLE ECOSYSTEM — • Apple Watch app: start, pause, end from your wrist, with live heart rate • Phone ↔ Watch mirroring — start on one, finish on the other • Apple TV app for the big screen, driven by the Siri Remote • AirPlay to any compatible TV for a full-screen workout dashboard • Live heart rate from your Apple Watch shown on the iPhone timer and on the TV when casting • Live Activity and Dynamic Island for the active timer • Home Screen and Lock Screen widgets for one-tap routine launch • iCloud sync across iPhone, iPad, Apple Watch • Background audio stays on — the timer never goes silent — SHARE — • Generate a shareable workout link for any routine • Friends open it in a browser and import in one tap — CUSTOMIZE — • Light and dark mode • In-app language switching: English, German, Spanish, Brazilian Portuguese • Granular sound pickers for start, end, per-phase cues

Interval Timer · HIIT & Yoga on iPhone Duo: FAQ

Is Interval Timer · HIIT & Yoga optimized for iPhone Duo?

The developer or App Store listing mentions iPhone Duo support.

What does Interval Timer · HIIT & Yoga look like on iPhone Duo?

Duo support is reported in the linked sources. The specific fold interaction and real-device behavior have not been independently verified.

How much does Interval Timer · HIIT & Yoga cost?

Interval Timer · HIIT & Yoga is free to download on the App Store.

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