VPN on public Wi-Fi¶
Public networks carry traffic that anyone else on the same network can observe. A VPN encrypts the connection between the device and the VPN server, preventing local eavesdropping.
Reliable options¶
ProtonVPN (free tier available, audited, Switzerland-based)
Mullvad (no account required, accepts cash payment, audited)
IVPN (transparent, audited)
How to use¶
Install the app and create an account.
Connect before joining any public network.
On Android: Settings → Network & Internet → VPN → enable Always-On VPN for automatic protection.
Free VPN services that do not charge for the service tend to monetise through data collection. The product is the traffic.