How to Connect to a LanChGo Secure Channel on Android

Step 1 — Open the LanChGo Android App

Launch the app and ensure your phone is connected to the same Wi-Fi network as the other device you want to talk to. LanChGo uses local network broadcasts — no internet required.

Step 2 — Create or Join

Use Create to host a secure channel from your Android device, or Join to connect to a channel created on another device (Windows or mobile).

🔹 Tip: If you create a channel on Android, tap the lock icon 🔒 at the top to view your PIN for sharing.

Step 3 — Scan QR Code or Enter PIN

On the device that created the channel (example: Windows), click Show PIN to reveal the 6-digit PIN and QR code. On your Android device, scan the QR code or type the PIN manually to join.

🔹 Note: The QR code generator feature is currently available only on the Windows version of LanChGo.

Step 4 — Connected

After a successful join the lock icon will indicate a secure channel. Messages between devices are encrypted with a shared key derived from the PIN and a salt — only channel members can decrypt them.

Step 5 — Chat Securely

Send messages as usual. Try the word ping to test the connection — both devices will play a sound. The messages are encrypted and no one can read them.

Step 6 — Leave the Channel

Tap Disconnect to stop being part of the secure channel. The app will return to public mode — any messages you send then are broadcast in plain text to all devices on the network.