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Ntervals app icon — a green stopwatch with an inner progress ring

Interval workout timer

Ntervals

Build an interval timer in seconds. Then train by ear.

A HIIT, Tabata and round timer built for the fewest taps possible — start from a template or make your own.

Download on theApp StoreGET IT ONGoogle Play
Platforms
iOS 16.4+ · Android 7+
Account
None
Works offline
Yes
Languages
14
The Timer tab: continue Tabata with one Start button, and saved workouts such as HIIT, Boxing Rounds and EMOM 10, each with a play button
The Timer tab: continue Tabata with one Start button, and saved workouts such as HIIT, Boxing Rounds and EMOM 10, each with a play button

Screens

  • Ntervals running a Full Body Circuit: a 0:20 countdown inside a green work ring, Burpees on now, round 2 of 4
    Stop staring at the workout clock.
  • The rest phase: a blue ring at 0:10, with Mountain Climbers shown as the next interval
    Hear every interval. Keep your music.
  • The workout editor: rounds, rest between rounds and get-ready steppers, and warm-up, work, rest and cool-down intervals
    Build any circuit in seconds.
  • Progress: 35 workouts, 121 active minutes, a 30-day streak, and a month calendar of completed days
    Every workout, logged for you.
  • A 30-day streak celebration after a completed workout, with confetti
    Keep your streak alive.

What it does

  • A timer in seconds

    Steppers, smart defaults, and starter templates for Tabata, HIIT, boxing rounds, EMOM and AMRAP.

  • Train by ear

    Work, rest and round cues duck your music instead of stopping it, and keep playing in the background.

  • Live Activity & widget

    The countdown, phase and round follow you to the Lock Screen, Dynamic Island and home screen.

  • Name every exercise

    Label each interval, drag to reorder, duplicate one or insert another below it. The voice cue calls each one by name.

  • Every workout, logged

    Sessions, active minutes and a month calendar fill in on their own, and a saved workout can be repeated from there in one tap.

  • Streaks

    A daily streak with a shareable milestone card, and a rest day each week that doesn’t break it.

How it works

  1. 01

    Pick a template or build one

    Set work, rest and rounds with a stepper. A workout is ready before your warm-up is done.

  2. 02

    Start and put the phone down

    A drift-free engine keeps time in the background and on the Lock Screen. Pausing never loses your place.

  3. 03

    Follow it by sound

    Distinct cues for work, rest, halfway and the final countdown. Glance at the screen only if you want to.

Privacy

What this app collects

Ntervals has no account. Your workouts and history are stored on your device.

  • No account or sign-in.
  • Workouts, sessions and settings stay on your device.
  • The only third party is the subscription provider (RevenueCat), used to process and restore purchases.
  • No advertising, no analytics SDK, no tracking.
  • Deleting the app deletes its data; an export/import is provided.

Full detail: Privacy Policy · Terms of Use

Get Ntervals

Download on theApp StoreGET IT ONGoogle Play

Questions? Contact support