VyprVPN for iOS establishes a connection using the IKEv2 protocol which is popular due to its balance between security and performance. You can also connect using OpenVPN 256 or Chameleon.
OpenVPN 256 uses high encryption for better security and performance.
More information on Chameleon can be found here.
If you need any further assistance, please contact support and we'll be happy to help!
Last reviewed/updated February 2020