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Interval Timer by STRNTH

Any interval workout, hands free

Build the exact routine you want, then run it with clear sound and voice cues. Free, from the makers of STRNTH.

Made for the gym

A free interval timer with no imposed structure. Build any routine, run it without touching your phone, and read it from across the room.

Build any routine

Set work and rest steps, name each one and group them into repeats. HIIT, Tabata, EMOM, AMRAP, circuits or rounds.

Run it hands free

A big countdown fills the screen. Sound and voice cues call every switch, so you never watch the clock.

Yours to keep

Everything stays on your device. No account and no sign in. Back up or share any routine as a file.

Build any timer

No fixed structure. Add as many steps as you like, then shape a warm-up, workout and cool-down exactly how you want them.

Steps your way

Give each step its own label, duration, colour, sound and voice.

Repeat blocks

Group steps into a repeat block so a round loops as many times as you need.

Start from a template

Couch to 5K, Tabata, HIIT, 7 minute workout, EMOM, AMRAP, boxing rounds, Pomodoro, box breathing and full body stretch.

Chain timers together

Link separate timers to run a warm-up, workout and cool-down as one session.

Run it hands free

Prop your phone up and train. A giant readout and clear cues keep you moving without a glance at the clock.

Read it across the room

A giant readout sits inside a progress ring, sized to read from the far side of the gym.

Colour every step

Full-screen colour per step so you know your phase at a glance.

Voice and sound cues

A voice reads each step and calls the next before it arrives. Beeps count you in on the last three seconds.

Your own sounds

Beep, go, switch, rest, bell, horn, gong and whistle tones, or import your own audio.

Cadence and get ready

A metronome from 60 to 180 BPM for running and rowing, a spoken 3-2-1, a get-ready countdown and haptics.

Choose what you see

Show interval time, total time, interval count, the clock or your heart rate.

Interval Timer home screen A timer running with a progress ring Building a timer The template picker The countdown tab The stopwatch with laps The timer display editor The Apple Watch companion Live heart rate during a run iCloud backups

More tools

Everything else you reach for around a session, in the same free app.

Countdown with presets

A quick single countdown with saved presets for a fast timer.

Stopwatch with laps

Time your splits and see your fastest lap in green and slowest in red.

Workout history

Every session is logged, so you can look back and run any timer again.

Themes and colours

Light and dark themes with your own custom step colours.

Share and import

Send a timer as a link or a file, and import timers others send you.

On the big screen

Send a running timer to the biggest screen in the room for a whole class or group to follow.

Cast to a TV

Show a running timer on a TV as a giant, glanceable readout over Chromecast or Google TV, or a wired HDMI or USB-C adapter.

Your phone stays in control

The big screen mirrors your session while your phone runs the show and stays in step.

Across your devices

Take your timers to the wrist, track your effort and keep a backup you can trust.

iPhone

Apple Watch

A companion app runs your timers on the wrist with colour and haptics.

Heart rate

Pair a Bluetooth strap to see live BPM, zones and more while you train.

iPhone

Apple Health

Save finished sessions to Apple Health as workouts.

iPhone

iCloud backup

Back up your timers to your private iCloud.

One app, one price

Download and use everything for free. Remove ads with a single purchase and they never come back.

Free

£0

The full timer, ad supported. Build and run any routine, with no account and nothing locked away.

Remove ads

£9.99 once

A single purchase clears every ad for good. No subscription and nothing else changes.