# Stopwatch

> Precise and simple stopwatch with lap tracking.

Canonical page: [https://chrome-stats.com/d/jp.aosystem.stopwatch](https://chrome-stats.com/d/jp.aosystem.stopwatch)

## Overview

- **ID:** `jp.aosystem.stopwatch`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** ao-system, Inc.
- **Category:** TOOLS
- **Downloads:** 376
- **Version:** 1.6.0
- **Last updated:** 2026-09-01
- **First published:** 2026-01-17
- **Publisher country:** JP
- **Size:** 31 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=jp.aosystem.stopwatch)
- **Website:** [https://www.aosystem.co.jp/](https://www.aosystem.co.jp/)
- **Privacy policy:** [https://www.aosystem.co.jp/privacy/](https://www.aosystem.co.jp/privacy/)

## Description

This app is a clean, fast, and easy-to-use stopwatch designed for accuracy and comfort.<br>With clear controls and smooth operation, it&#39;s perfect for workouts, study sessions, cooking, productivity tracking, and any situation where precise timing matters.<br><br>Key Features<br>- High-precision stopwatch<br>Measures time accurately down to the millisecond.<br>- Lap time recording<br>Save up to 99 laps with automatic split-time calculation for easy pace tracking.<br>- Vibration feedback<br>Enable haptic feedback when pressing buttons for a more responsive feel.<br>- Simple and intuitive interface<br>Clean visuals and easy-to-reach controls make the app comfortable to use.<br>- Dark, stylish design<br>A modern look that fits well in any environment.<br><br>Perfect for<br>- Running, training, and interval workouts<br>- Study and focus sessions<br>- Cooking and daily tasks<br>- Productivity and time management<br>- Anyone who wants a lightweight, reliable stopwatch<br><br>Lightweight &amp; Fast<br>The app is optimized for smooth performance and works well even on older devices.

## Rankings

- #1,480,431 — 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.READ_BASIC_PHONE_STATE`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `jp.aosystem.stopwatch.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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Source: [Chrome-Stats](https://chrome-stats.com/d/jp.aosystem.stopwatch)