If you have used other VPNs you will find that most of them are hung up sometime It is because the server need rebuild manually .

Jack VPN based on the latest ss kernel uses full-automatic intelligent maintenance technology to replace manual maintenance. Even in special time it will still available.
It is hard for other VPNs to do this.

Jack VPN permanent unlimited free to use no manual maintenance costs only contains 1 set of ads for server fees no login one-press to access block sites try it now!

I did a lot of work for Jack VPN and I know it may not be the best VPN.
But the market is very competitive and the server needs cost. I still insist on providing this service for free forever.
If you think it is not good enough please uninstall it. Leave it to those in need. Thank you.