NCP Secure Entry is described as 'Client. The universal IPsec client with comfortable features and the support of strong authentication, e.g. electronic certificates, for deployment in VPN environments by third-party manufacturer. Supports 64-bit Windows' and is an app in the Network & Admin category. There are more than 50 alternatives to NCP Secure Entry for a variety of platforms, including Windows, Mac, Android, iPhone and Linux. The best alternative is Tor Browser, which is both free and Open Source. Other great apps like NCP Secure Entry are Tor (Free, Open Source), OpenVPN (Freemium, Open Source), ProtonVPN (Freemium, Open Source) and WireGuard (Free, Open Source).
Bitmask is an EXPERIMENTAL open source application to provide easy and secure encrypted communication. You can choose among several different service providers or start your own. Currently, it supports encrypted internet (VPN) and encrypted email.
VPN Gate Academic Experiment Project is an online service as an academic research at the Graduate School of University of Tsukuba, Japan. The purpose of this research is to expand the knowledge of "Global Distributed Public VPN Relay Servers".
sshuttle: where transparent proxy meets VPN meets ssh sshuttle is the only program that solves the following common case: Your client machine (or router) is Linux, FreeBSD, or MacOS. You have access to a remote network via ssh.
FreePN is the first completely free, completely open network dedicated to protecting your online privacy. Joining the network is easy: just download and install the app. No accounts, no registration, no setup. Once you start the app, you're already protected.