InviZible Pro is described as 'uses DNSCrypt Protocol, Tor and i2pd (I2P Daemon) (PurpleI2P) to achieve maximum security, privacy and comfortable use of the Internet' and is an app in the security & privacy category. There are three alternatives to InviZible Pro for a variety of platforms, including Android, Android Tablet, Linux, Mac and Raspberry Pi. The best alternative is Orbot, which is both free and Open Source. Other great apps like InviZible Pro are Bitmask and i2pd (I2P Daemon).
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.