Should I install LetsVPN and Kuailian separately? No. Keep one official client on the device. Two query names, one product line. Two copies fight the system route and mix up sign-in screens.
Comparison posts drift into feature tables that add nothing. The failure to avoid is two desktop icons fighting over the tunnel.
Accounts only from the purchase channel
Another accelerator’s email will not sign in. On a wrong-account prompt, switch channel, not installer. Login: sign-in.
Definition: what it is. File: Download.
FAQ
Can the two names share a login?
Same product line, same purchase-channel account. Do not force another accelerator’s login.
Why two names in search?
Chinese and English query habits. Landing here explains the English name — it is not a reason to install twice.
Uninstall one of them?
If it is actually one program, removing one removes it. Check whether Applications lists a single client.
Need the installer or platform notes?
The download page lists versions, requirements, and install entry points.
Open download page 