Happ is the app the VPN runs through. First install it (adding a subscription is a separate step — see "Adding a subscription").
Easiest — the "Install" button in the web account (the site lk.surfingvpn.com, opens in a browser):
- Open the "Connection" tab (bottom bar on phone, left menu on desktop).
- Choose your system (iOS / Android / Windows / macOS / Linux / TV).
- Tap "Install" — the store or download page opens; install the app.
Next to it is a "Connect" button — you'll need it later, to add the subscription. For now tap only "Install".
On iPhone/iPad, on first launch Happ asks to allow the VPN configuration — tap Allow and confirm with your passcode or Face ID.
Or install directly:
- iPhone/iPad — App Store, "Happ Proxy Utility"
- Android — Google Play, "Happ Proxy Utility" (if Google Play doesn't work — APK from happ.su)
- Windows / macOS / Linux — happ.su