MacOS Sierra and iOS 10 users will forgo the option of PPTP VPN on iOS once they upgrade. As part of preparing for the release of iOS 10 and macOS Sierra, Apple publicly announced back in July that they are removing PPTP support from Apple’s integrated VPN client owing to a number of security vulnerabilities in the VPN protocol.PPTP connections are automatically imported into VPN Tracker if launched on El Capitan prior to the upgrade and if the connection fails, there is a professional support team. VPN Tracker also supports PPTP it's not free but presumed to be the most professional VPN Software for the Mac.
