A free app for Android, by OS Technologies.

VPN Hotspot & Proxy is a VPN (Virtual Private Network) proxy service app for Android devices. The app lets you create and manage your own VPN server on your Android device, and share your VPN connection with other devices. The application can also be used to go past the hotspot limitation of your Internet Service Provider (ISP).

How to use the app:

First, you need to download and install the app. The installation is a one-time, simple, and quick process.  You need to select the server’s hostname if you want to start the service with a specific hostname.