# Stroboscope: 300Hz + Presets

> Strobe light up to 300Hz: match motor RPM, check fans, props and belts

Canonical page: [https://chrome-stats.com/d/com.simonj.stroboscope](https://chrome-stats.com/d/com.simonj.stroboscope)

## Overview

- **ID:** `com.simonj.stroboscope`
- **Platform:** Android
- **Type:** Android app
- **Status:** Removed
- **Publisher:** Global Utility App Maker
- **Category:** TOOLS
- **Downloads:** 50
- **Version:** 1.1.19
- **Last updated:** 2026-08-31
- **First published:** 2026-08-08
- **Publisher country:** KR
- **Size:** 67 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.simonj.stroboscope)
- **Website:** [https://simon-jang.blogspot.com/](https://simon-jang.blogspot.com/)
- **Privacy policy:** [https://sites.google.com/view/stroboscopesss](https://sites.google.com/view/stroboscopesss)

## Description

Professional strobe light for inspecting rotating machinery, measuring RPM, and freezing motion. Adjust frequency from 0.5–100 Hz with precision control — perfect for mechanics, engineers, and creators.<br><br>FEATURES:<br>• Adjustable frequency range from 0.5 Hz to 100 Hz<br>• Three duty cycle modes: 10%, 25%, and 50%<br>• ×2 and ÷2 buttons for quick harmonic frequency finding<br>• RPM presets for common motor and fan speeds<br>• Real-time display of period, timing, and flashes per minute<br>• Clean, intuitive interface designed for fieldwork<br><br>APPLICATIONS:<br>• Inspect rotating machinery and motors<br>• Measure fan blade and propeller RPM<br>• Freeze apparent motion for visual inspection<br>• Verify belt and gear synchronization<br>• Educational physics demonstrations<br><br>Whether you are a maintenance technician, engineer, or hobbyist, this stroboscope app gives you the precision tools you need for motion analysis and rotational speed measurement right in your pocket.

## 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.MODIFY_AUDIO_SETTINGS`
- `android.permission.SYSTEM_ALERT_WINDOW`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_SETTINGS`
- `com.amazon.privacypass.ATTEST`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE`
- `com.google.android.gms.permission.AD_ID`
- `com.simonj.stroboscope.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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