"SKY" is a VPN software under MAC Encrypt your network access in the public network, protect your sensitive information, and prevent hacking from hacking. Infinite flow, no time limit, one key connection. SKY, in addition to the Mac version, we have also developed for iPhone and for iPad versions, please search directly in Appstore. The VPN connection configuration is created for the first time the connection is connected to the line, and the user needs to be allowed manually.