UltraVPN is described as 'client/server SSL VPN solution based on OpenVPN. It encrypts and anonymizes your network connection' and is an app in the Security & Privacy category. There are more than 25 alternatives to UltraVPN for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is Tor, which is both free and Open Source. Other great apps like UltraVPN are OpenVPN (Freemium, Open Source), Freenet (Free, Open Source), I2P (Free, Open Source) and RetroShare (Free, Open Source).
Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security.
RetroShare is a open source cross-platform, private and secure decentralized communication system. It lets you to securely chat, share photos, videos, and more, using OpenPGP to authenticate peers and...
Mullvad is an ethical VPN provider based in Gothenburg, Sweden. They keep no logs and an account number is the only thing you need to connect to Mullvad VPN. They ask for no email, no phone number; no personal information whatsoever.
GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file-sharing.