Install
Windows and Android: our app — download it and enter your subscription code; on Android you can also start with a free trial. iPhone, iPad and Mac: Karing or Clash Mi from the App Store, with the subscription code activated on this site.
Windows 10 and 11
The installer is not signed with a publisher certificate, so SmartScreen will warn: "More info" → "Run anyway". Check the SHA-256 under the button — it is the only integrity check of the file you have.
To check the SHA-256: open the folder with the downloaded file, right-click an empty spot → "Open in Terminal" (on Windows 10, hold Shift: "Open PowerShell window here") and run the command Get-FileHash .\usva-vpn-setup.exe — the Hash line must match the SHA-256 under the button, in any letter case.
After installing, an icon appears in the system tray. First run: icon → "Activate device…" → enter your subscription code or activation code. For a subscription code the app shows your account number — write it down; the computer then activates itself within a few minutes.
Leak protection is off after installation. Turn it on in the tray menu: "Kill-switch" → "Strict (block)"; the choice is kept.
Android 8 and newer
The app is not on Google Play. Download the APK and allow installation from this source when the system asks.
Google Play Protect may offer to scan the app. It passes the scan: you can agree, or choose "Install without scanning". Android checks updates itself: a new version installs over the old one only if it is signed with the same key. You can check the SHA-256 under the button on a computer; a phone has no built-in way to do it.
On first launch Android asks for notification permission and for VPN consent — both are needed: without the notification the system stops the background service, without the consent the tunnel cannot come up.
On the first screen, choose what you have: a subscription code (you get it after buying) or an activation code (another of your devices on that subscription issues it). With neither, choose "Try free for 3 days": one device, 3 days or 1 GB, whichever comes first.
Without our app — Karing or v2rayNG
The official builds of Karing and v2rayNG are on their developers' GitHub:
If GitHub does not open — our copies of the same files, unchanged. These are third-party apps; we are not affiliated with them:
Download Karing — version 1.2.26.2923 · 107 MB
Download v2rayNG — version 2.3.15 · 72 MB
The subscription goes into them through this site — the same way as on an iPhone (below).
iPhone and iPad
We have no app for iPhone and iPad — the subscription works in Karing or Clash Mi. Both come from one developer, SUPERNOVA NEBULA LLC. The App Store has apps with similar names, so open these two by the links:
Then open this site on the iPhone and activate your subscription code. You get the account number — write it down — and an activation code for each device. Press "Connect another app" beside a code, and on the device's page press "Karing": the subscription goes into the app by itself. For Clash Mi, copy the subscription link there and add it in the app as a profile from a link.
If you already have an account, you need no new subscription code: an activation code goes into "Connect another app", and the account number opens "My subscription".
Mac
We have no app for the Mac either — the subscription works in Karing from the App Store (macOS 12 or newer):
Then as on an iPhone: activate your subscription code on this site, press "Connect another app" beside a code, and on the device's page press "Karing".
Still stuck?
Write to support