VPN Share lets you share your vpn connection with others throught wifi access point (hotspot) using "Tethering" technic. As we know, android does not allow to share vpn connection directly like we do with normal connection, and if we tried two, we will get only the normal connection even if we have a vpn network running in the host device.
Using VPN Share, you will be able to share also the vpn connection using tethering.
Although using this application is very easy, it provides a detailed documentation on how to connect to it from different systems like: Android, Windows, ios, Linux, etc.