# Flex Interval Timer

> Build your own training rhythm with customizable phases and loops.

Canonical page: [https://chrome-stats.com/d/com.blackratel.apps.flexintervaltimer](https://chrome-stats.com/d/com.blackratel.apps.flexintervaltimer)

## Overview

- **ID:** `com.blackratel.apps.flexintervaltimer`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Preco Works
- **Category:** HEALTH\_AND\_FITNESS
- **Downloads:** 31
- **Version:** 1.21
- **Last updated:** 2026-07-31
- **First published:** 2026-07-31
- **Publisher country:** JP
- **Size:** 6.03 MB
- **Data as of:** 2026-09-10
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.blackratel.apps.flexintervaltimer)
- **Website:** [https://blackratelfaq.blackratel.com](https://blackratelfaq.blackratel.com/)
- **Privacy policy:** [https://blackratel.com/privacypolicy/flexintervaltimer.html](https://blackratel.com/privacypolicy/flexintervaltimer.html)

## Description

Flex Interval Timer is a highly flexible interval timer designed for any kind of training — weight training, HIIT, stretching, and more.<br><br>&gt; Combine Phases Freely<br>Build your sessions with phases like Warm-Up, Work, Rest, and Cool-Down -  in any order and duration you choose.<br><br>&gt; Loop Settings<br>Group phases into loops to handle complex interval patterns with ease. Perfect for Tabata, circuit training, and more.<br><br>&gt; Countdown to Stay Ready<br>A countdown before the start and before each phase ends keeps you prepared for what&#39;s coming next.<br><br>&gt; Audio Cues for Timing<br>Sound effects notify you at every phase transition so you never lose track.<br><br>&gt; Customize Phase Names<br>Rename phases in the menu to match your own training style.<br><br>&gt; Track Your Training History<br>Review completed sessions in a calendar view to stay motivated and consistent.<br><br>&gt; Save Presets for Quick Start<br>Save your favorite routines as presets and launch them in one tap next time.<br><br>&gt; Dark / Light theme support<br>&gt; Available in Japanese and English

## Rankings

- #2,439,064 — 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.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.android.vending.CHECK_LICENSE`
- `com.blackratel.apps.flexintervaltimer.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.blackratel.apps.flexintervaltimer)