Download VaultLine VPN for your device and start browsing securely with military-grade encryption and lightning-fast WireGuard servers.
Direct APK download — no Play Store required. Works on Android 7.0 and above.
Fire Stick users: Requires Fire Stick 2nd Gen (2016) or later. Gen 1 (2014) devices are not supported due to hardware limitations. See sideloading instructions below.
Update Log
v3.0.3 — 4 June 2026 — Updated to 3.0.3
Lightweight desktop client for Windows 10 and 11. Quick install, instant protection.
Android: Download the APK file and tap it to install. You may need to enable "Install from unknown sources" in your device settings. Once installed, log in with your VaultLine account to connect.
Windows: Download and extract the ZIP file, then run the installer inside. Once installed, log in with your VaultLine account and select a server to get protected.
VaultLine VPN works on Fire Stick 2nd Gen (2016) and later, Fire TV Stick Lite, Fire TV Stick 4K, and Fire TV Cube. Gen 1 Fire Sticks (2014) are not supported.
On your Fire Stick, go to Settings → My Fire TV → Developer Options and enable "Apps from Unknown Sources".
Search for and install the "Downloader" app from the Amazon Appstore (it's free).
Open Downloader and enter this URL: vaultlinevpn.com/downloads/vaultlinevpn3.0.3.apk
The APK will download and prompt you to install. Tap "Install", then open VaultLine and log in.
💡 Tip: If you don't see Developer Options, go to Settings → My Fire TV → About → click your device name 7 times to unlock it.