How to Create a VPN Server on an Android Phone
IPVanish supports a few VPN protocols on Android devices including OpenVPN (TCP) and OpenVPN (UDP). We suggest using the OpenVPN (UDP) protocol for faster speeds. The OpenVPN protocol performs best on Android TV Boxes. This is the default option and allows for an easier installation setup, which we cover in the tutorial below. How to setup VPN Server free| Create your own private VPN Jul 19, 2020 How to Create VPN Profile and Connect to it in android
This provides one potential VPN solution that you are fully in control of (the server is open-source also), but it is not PPTP or IPSec. If you understand the PPTP protocol, it should be possible to use this as a model to implement such a VPN client. I think u find more information here:
Connect to a PPTP VPN from your Android phone - TechRepublic
VPN app without servers infrastructure is useless. So the better way is to get white label solution, it’s mean that you’ll get ready to go solution without huge investment , of course if you have own vision of perfect VPN app, you can develop it b
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