WhatsApp for the Light Phone III

An unofficial WhatsApp client for the Light Phone III, built with the Light SDK's UI components.

Warning

Not affiliated with WhatsApp, Meta or Light. It connects as a linked device over a reverse-engineered protocol, so WhatsApp may restrict accounts that use it.

Features

• Chats: text, photos, delivered/seen receipts
• Voice and video calls, front and rear camera
• Call log and contacts
• Chat and call history from your main phone

Install

Download the latest APK from Releases and install it with adb:

adb install whatsapp_<version>.apk

Open the app and scan the QR code from WhatsApp on your main phone (Settings, Linked devices, Link a device).

Build

Requires Go, gomobile, the Android SDK with NDK 25.1.8937393, JDK 21, and a checkout of light-sdk next to this repository (or set LIGHT_SDK_DIR).

go install golang.org/x/mobile/cmd/gomobile@latest && gomobile init
ANDROID_NDK_HOME=$ANDROID_HOME/ndk/25.1.8937393 scripts/build-walib.sh
cd android-app && ./gradlew assembleDebug

Tests: ./gradlew ktlintCheck testDebugUnitTest in android-app, go test ./... in walib.

Release

Push a tag matching versionName in android-app/app/build.gradle.kts, e.g. v0.1.0. The release workflow builds a signed, minified APK and publishes it. It needs these repository secrets:

Secret	Value
KEY_STORE_BASE64	base64 -i release.jks
KEY_STORE_PASSWORD	keystore password
ALIAS	key alias
KEY_PASSWORD	key password

Layout

• android-app/ Android app (Kotlin, Compose)
• walib/ Go library bridging the app to WhatsApp, built with gomobile
• art/ logo
• meowcaller/ vendored meowcaller with local patches (PATCHES-wa-poc.md)

Credits

hypermeow (a whatsmeow fork), meowcaller, Light SDK, and Chats for the typography and UI/UX inspiration.

License

Released under the MIT License.