Archery Shot Counter

A WearOS app for archers that automatically counts shots using the wrist accelerometer — no buttons needed during shooting. Works with any bow style (compound, Olympic recurve, barebow, traditional) and on either wrist — just tune the sensitivity to match your setup.

Features

• Automatic shot detection — detects the recoil impulse of a bow release via the wrist accelerometer
• Manual adjustment — tap +/− to correct the count if needed
• Session tracking — start, pause, resume and end training sessions
• Session history — browse past sessions with date, time range, shot count and duration
• Adjustable sensitivity — High / Medium / Low / Custom threshold
• 12 interface languages — English, Russian, Spanish, French, German, Portuguese, Chinese, Japanese, Korean, Arabic, Turkish and Hindi

Requirements

• Wear OS 3.0+ smartwatch (Android API 30+)
• Wrist-mounted accelerometer (standard on all WearOS watches)
• Tested on Galaxy Watch 6 Classic (bow arm, compound bow)

Installation

Download the latest APK from the Releases page and sideload it to your watch via Wi-Fi ADB.

1. Prepare the watch

1. Make sure the watch and your PC are on the same Wi-Fi network.
2. On the watch, open Settings → System → About and tap Build number 7 times to enable Developer options.
3. Go to Settings → Developer options and enable:
   • ADB debugging
   • Debug over Wi-Fi
4. Open Settings → Developer options → Debug over Wi-Fi → Pair device — the watch will display an IP address, a port, and a pairing code.

2. Pair and connect from your PC

# Pair once using the code shown on the watch
adb pair <watch-ip>:<pairing-port> <pairing-code>

# Then connect
adb connect <watch-ip>:<port>

3. Install the APK

adb install ArcheryShotCounter-<version>.apk

How it works

The app listens to TYPE_LINEAR_ACCELERATION (gravity-compensated) sensor data. When the string is released, the recoil creates a spike in wrist acceleration. If that spike exceeds the sensitivity threshold and a 2-second cooldown has passed since the last shot, a shot is counted and the watch vibrates briefly.

The optimal sensitivity depends on your bow style and which wrist you wear the watch on — the bow arm typically produces a stronger impulse than the string arm. Use the Custom threshold if the presets don't work well for your setup.

Building from source

git clone https://github.com/Vemestael/ArcheryShotCounter.git
cd ArcheryShotCounter
./gradlew assembleDebug

For a signed release build, create keystore.properties in the project root (not committed):

storeFile=/path/to/your.jks
storePassword=...
keyAlias=...
keyPassword=...

Then run:

./gradlew assembleRelease

License

MIT — see LICENSE.

Screenshots (Photos)

Training sessions screen

Main screen

Settings screen