# Custom Interval Timer: Workout

> Tabata? HIIT? 100% Custom... Create your workouts with Custom Interval Timer.

Canonical page: [https://chrome-stats.com/d/com.mathdomaindevelopment.intervaltimer](https://chrome-stats.com/d/com.mathdomaindevelopment.intervaltimer)

## Overview

- **ID:** `com.mathdomaindevelopment.intervaltimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** MATH Domain Development
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 15,200
- **Rating:** 4.42 / 5 (381 ratings)
- **Version:** 1.0.25
- **Last updated:** 2026-02-22
- **First published:** 2015-04-17
- **Publisher country:** US
- **Size:** 7.06 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.mathdomaindevelopment.intervaltimer)
- **Website:** [https://mathdomaindevelopment.blogspot.com/](https://mathdomaindevelopment.blogspot.com/)
- **Privacy policy:** [http://mathdomaindevelopment.blogspot.com/2015/09/math-domain-privacy-policy.html](http://mathdomaindevelopment.blogspot.com/2015/09/math-domain-privacy-policy.html)

## Description

**Custom Interval Timer** helps you create workout timers that guide you through your exercises. Build Timers by creating Interval Lists, adding Intervals with names and countdown times, and setting the number of Rounds. It supports voice, sound, and/or vibration feedback, and you can customize the theme, font size, and font style. It can run in the background while you use other apps or when the screen is off.

**Setup**: Add Intervals to a List, name them, set countdown times, and choose rounds (1-99).

**Playback & Feedback**: Playback controls let you play, pause, and skip between Intervals. The built-in feedback notifies you at key moments via voice, sounds, or vibration. Ideal for Running, Tabata, HIIT, Cycling, Weightlifting, CrossFit, MMA, Boxing, Yoga, and more. This is a free download and ad-supported.

## Rankings

- #482,737 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.FOREGROUND_SERVICE_SPECIAL_USE`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.google.android.gms.permission.AD_ID`
- `com.mathdomaindevelopment.intervaltimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

### Pros

- Highly customizable intervals and timers
- Easy to use and set up workouts
- Voice notifications for intervals
- Good for various activities beyond workouts, such as cooking
- Works well in the background while listening to music or podcasts

### Cons

- Ads are intrusive and disrupt the workout experience
- No option to pay for an ad-free experience
- Some users experienced crashes or bugs during workouts
- Limited sound options and volume control for notifications
- Difficulties with certain features like reordering intervals

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.mathdomaindevelopment.intervaltimer)