iSSTP

sstp-client GUI for Apple macOS / OSX

Instructions

Install sstp-client first via homebrew:
Goto Utilities -> Launch "Terminal"
Type:

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

answer the questions and type your password when prompted
then type:

brew update
brew install sstp-client

Then compile/install iSSTP to your 'Applications' folder

Thanks for the hard work to the original author 'axot' https://github.com/axot
And some awesome features added by 'easybe' https://github.com/easybe

sstp-client is the underlying software that makes this all possible. http://sstp-client.sourceforge.net/

Homebrew is a highly recommended way to install sstp-client and an awesome package manager for other open source software:
https://brew.sh/