Installing

1. Download the APK on your phone (or download it on a PC and copy it to your phone)
2. Open the file to install it. The first time, the app that opens the APK (a browser, a file manager, etc.) needs permission to install apps from unknown sources (Android 8.0 or later: “Install unknown apps”; Android 7.x: “Unknown sources”)
3. The app asks for camera permission the first time you scan a QR code, and for notification permission (Android 13 or later) when you use notifications

To update, install a new version the same way over the old one. Your paired PCs and other data are kept.

Preparing the PC and pairing

1. In NAPTIFY Client on the PC, open Settings → Remote and turn on “Use remote”
2. Press “Add device” to show a QR code (only while listening; the QR code is shown for a limited time)
3. In NAPTIFY Remote on the phone, press “Add PC” and scan the QR code
4. The PC appears in the list. Tap it to connect

• You can add several PCs and choose one from the list
• On Windows, a firewall prompt appears the first time the client starts listening. If you do not allow it, the phone cannot connect
• The connection between the phone and the PC is encrypted (TLS). The phone checks the PC’s certificate fingerprint received in the QR code before connecting
• You can see and revoke devices in Settings → Remote in NAPTIFY Client on the PC. A revoked device can no longer connect

Away from home

• Port forwarding — Available when the data port of NAPTIFY Client on the PC (the same port used for transfers) can be reached from outside. Only the data port needs to be opened.
• VPN (Tailscale, etc.) — Use this when your line cannot open ports (CGNAT, DS-Lite, etc.). Connect both the PC and the phone to the VPN.

Open and check the data port in Settings → Transfer → Port in NAPTIFY Client on the PC. To receive addresses, the phone needs to have connected to each paired PC at least once.

Uninstalling

1. Uninstall NAPTIFY Remote from the app list in Android’s settings. The data in the app’s storage (paired PCs, videos and music saved to the phone) is deleted too
2. Files saved to the Download folder (Download/NAPTIFY) are kept; delete them if you no longer need them
3. In NAPTIFY Client on the PC, revoke the device in Settings → Remote