Its actually free!!

Most of the vpn apps charge a fee after your "free trial" but this is a really great and free app. It unblocked my schools restrictions. I can use the wifi for social media now.

Taber Jaxton Crockett about Free VPN by VPN Master- Proxy VPN client for WiFi hotspot security, unblock sites, and privacy protection | Fast VPN speed, v2.2.1