H1 is LetsVPN: one client per machine, read the prompt on a spinner. Official-site, download-only, Windows, and Mac titles live on other properties. See the FAQ and download page.
LetsVPN is the English name used with Kuailian. You install the same official client. This site explains the name — it does not retitle itself as official site or download-only.
Read more →Query language differs; the package channel does not. Install one official client on the computer or phone and sign in with the purchase-channel account — not two copies.
Read more →If LetsVPN sign-in spins, read the in-app prompt, then set the system clock to automatic. A large time skew blocks login even with a fresh package.
Read more →Before Connect, see whether status is signed out, no permission, or ready. The three fixes differ — do not always switch nodes or reinstall.
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