# Gravity Sensor: G-Force Meter

> Turn your phone into a G-force meter. Measure & graph gravity in real time.

Canonical page: [https://chrome-stats.com/d/jp.gr.java\_conf.chronoluxsensor](https://chrome-stats.com/d/jp.gr.java_conf.chronoluxsensor)

## Overview

- **ID:** `jp.gr.java_conf.chronoluxsensor`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** narusat
- **Category:** EDUCATION
- **Downloads:** 32,915
- **Rating:** 4.31 / 5 (157 ratings)
- **Version:** 3.0
- **Last updated:** 2026-09-13
- **First published:** 2017-01-15
- **Publisher country:** JP
- **Size:** 19 MB
- **Data as of:** 2026-10-17
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=jp.gr.java_conf.chronoluxsensor)
- **Website:** [http://narusat.com](http://narusat.com/)
- **Privacy policy:** [https://narusat.com/privacy\_policy.html](https://narusat.com/privacy_policy.html)

## Description

**Gravity Sensor: G-Force Meter** turns your Android phone into a real-time accelerometer using its built-in sensors. Measure gravity and G-force, view readings on a clear live graph, and automatically record the maximum value with a single tap.

Ideal for science classes, school projects, elevators, trains, cars, roller coasters, and everyday experiments. Observe Earth’s standard gravity at approximately 1 G, explore acceleration and braking, and see how readings change during motion. The app is lightweight, easy to use, and designed for educational and entertainment purposes. Measurement accuracy depends on your device’s built-in sensor.

## Rankings

- #362,543 — 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_MEDIA_PLAYBACK`
- `android.permission.INTERNET`
- `android.permission.POST_NOTIFICATIONS`
- `android.permission.READ_EXTERNAL_STORAGE`
- `android.permission.RECORD_AUDIO`
- `android.permission.VIBRATE`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_EXTERNAL_STORAGE`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.google.android.gms.permission.AD_ID`
- `jp.gr.java_conf.chronoluxsensor.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

## Review summary

Reviews are mixed. Several users find the app useful for learning about G-force and enjoy testing readings through movement. Others report intrusive ads and say the app is fake or does not work. Isolated reports of readings failing above 6.9 G are not a recurring issue.

### Pros

- Helps users understand and observe G-force and gravity, including during free fall.
- Several users describe it as useful, simple, and working well.
- Users enjoy seeing G-force readings and graph spikes while moving or exercising.

### Cons

- Some users say the app quickly prompts them to pay to remove ads or forces ads on them.
- Multiple reviewers call the app fake, useless, or not working.

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Source: [Chrome-Stats](https://chrome-stats.com/d/jp.gr.java_conf.chronoluxsensor)