--- Title: Support --- CCrypto VPN uses mainly two VPN technologies, [OpenVPN](https://openvpn.net/) and [WireGuard](https://www.wireguard.com/). We recommend WireGuard for its simplicity, security, and performances, but also provide OpenVPN servers for compatibility with many devices and setups. ### WireGuard Installation Guide The most up to date installation instructions for WireGuard are on its official website: [*Installation - Wireguard*](https://www.wireguard.com/install/). - On Android and iOS, simply open the app and scan a [QR code from your account page](/account/wireguard) to associate a device. - On Windows, mac OS and Linux, import a configuration file [downloaded from your account](/account/wireguard). ### OpenVPN Installation Guides ### Help - [**Knowledge Base**](/kb/): We already cover many common questions in our knowledge base. - [**Self-Diagnosis**](/page/self-diagnosis): Before asking for help, check here if you find the solution to your problem. ### Contact Us - [**Tickets**](/tickets/): The most reliable and private way to reach us. - E-mail: **support at ccrypto.org** if you would like to ask a question without creating an account, or need help with your account.