Description
https://github.com/drduh/OS-X-Security-and-Privacy-Guide/blob/master/README.md#vpn
Although OpenVPN is great, it is lacking fresh crypto, especially on mobile versions and even OS X due to builds with native (old) crypto libs. This can become a problem when you attempt to override the default cipher, keysize, digest, etc with stronger variants -- eg AES256, 4096bit keys, SHA512, etc. Notorious are the iOS and Android builds of OpenVPN as they will not support the stronger crypto currently, sometimes due to the limitation of the platforms themselves.
As a potential short term alternative until stronger crypto is supported by OpenVPN on mobile devices, Disconnect runs a tiered service that allows "free VPN" on mobile devices up to 100MB a month. This is good for casual VPN users to try out. They also offer a paid service for multiple devices for between $30-$50 annually ($3-$4 per month, very affordable). Disconnect is also the Public Benefit (B Corp) that runs the default search engine for the Tor Browser Bundle (TBB). As such, they are fairly trusted. A link to their site is below:
Note: Disconnect VPN blocks connections on some ports, so beware that they do perform filtering to cut down on abuse of their free service. They block commonly abused ports and also connections to high ephemeral ports. Eg. If you try to connect to services on high numbered ports via the VPN, they may not work :(