# Pocket Chrono

> Ditch the expensive equipment—measure FPS or meter per second with your phone!

Canonical page: [https://chrome-stats.com/d/com.yee.pocket\_chrono](https://chrome-stats.com/d/com.yee.pocket_chrono)

## Overview

- **ID:** `com.yee.pocket_chrono`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Chrono Labs
- **Category:** TOOLS
- **Downloads:** 15
- **Version:** 3.4.1
- **Last updated:** 2026-09-07
- **First published:** 2026-05-13
- **Publisher country:** DE
- **Size:** 7.25 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.yee.pocket_chrono)
- **Website:** [https://pocket-chrono.web.app](https://pocket-chrono.web.app/)
- **Privacy policy:** [https://pocket-chrono.web.app/privacy-policy.txt](https://pocket-chrono.web.app/privacy-policy.txt)

## Description

Pocket Chrono – Ballistic Chronograph App for Airsoft &amp; Paintball<br><br>Turn your Android phone into a professional-grade chronograph — no extra equipment needed.<br>Pocket Chrono measures the muzzle velocity of your airsoft or paintball marker using only <br>your phone&#39;s built-in microphone and accelerometer. The app detects the <br>muzzle blast through the audio sensor and the physical impulse through the <br>accelerometer, then precisely calculates the time difference between the two <br>events to derive your projectile&#39;s velocity in FPS or m/s.<br><br>Why Pocket Chrono?<br><br>✔ No external hardware or accessories required<br>✔ Free chronograph alternative for airsoft &amp; paintball players<br>✔ Works with any airsoft gun, AEG, GBB, HPA, or paintball marker<br>✔ Instant FPS readings right from your pocket<br>✔ Lightweight, fast, and easy to use — no big setup needed<br>✔ Perfect for field day checks, gear tuning, and loadout testing<br><br>Who is it for?<br><br>Whether you&#39;re a casual skirmisher, a competitive speedball player, a milsim <br>enthusiast, or a tech-minded tinkerer who loves tuning their gear — Pocket Chrono gives <br>you a free, reliable way to measure your muzzle velocity without <br>spending money on a dedicated chronograph.<br><br>Great for:<br><br>Airsoft AEG, GBB, HPA, and spring gun owners<br>Paintball marker tuning and field velocity checks<br>Budget players who want pro-level data without the price tag<br>Gear reviewers and content creators testing FPS claims<br>Players who need to verify field limits before a game day<br><br>How it works:<br><br>Open the app, lean your phone against any suitable target<br>and point whatever you want to measure downrange.<br>Fire a shot — Pocket Chrono listens for the muzzle blast <br>and detects the physical impulse simultaneously.<br>Get your muzzle velocity instantly in FPS or m/s.<br>The Muzzle Velocity and Joule values are only accurate<br>for spherical projectiles.<br><br>No chronograph rental. No extra gadgets. Just your phone.<br>Download Pocket Chrono and start measuring smarter.<br><br>© 2026 Pocket Chrono

## Rankings

- #2,690,832 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.HIGH_SAMPLING_RATE_SENSORS`
- `android.permission.INTERNET`
- `android.permission.READ_BASIC_PHONE_STATE`
- `android.permission.RECORD_AUDIO`
- `android.permission.WAKE_LOCK`
- `com.android.vending.BILLING`
- `com.google.android.gms.permission.AD_ID`
- `com.yee.pocket_chrono.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`

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