When comparing PureVPN vs Cloak, the Slant community recommends Cloak for most people. In the question“What is the best VPN provider? ” Cloak is ranked 25th while PureVPN is ranked 33rd. The most important reason people chose Cloak is:
SSL pinning protects against some forms of man-in-the-middle attacks that even SSL encrypted traffic is vulnerable to. Not long ago, iOS did not allow for pinning but that may have changed more recently.
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Pros

Pro Fast streaming speed
PureVPN has 500+ servers around the globe that allow users to stream via various powerful servers, which gets them high-speed streaming.
Pro Torrent support
PureVPN offers torrenting across a long list of servers like Panama, Belgium, Luxembourg, Netherlands, Denmark, Germany, Norway, Sweden, Estonia, Moldova, Romania, Bulgaria, Turkey, Brunei and many others.
Pro Complete privacy
80,000+ IPs ensure users complete privacy no matter where they are, which activities they perform online, and on which country’s websites PureVPN covering more than 140 counteries.

Pro Hassle-Free Unblocking
No matter which website is and from which country, it is guaranteed that PureVPN will unblock it. There are 80,000+ IPs offered through 500+ servers from around the world which unblock global content effortlessly. Because of the global network purevpn truely unblocks any website.
Pro Cheap
Pro Good security and service
PureVPN uses 256-bit encryption software and they also use three security protocols namely, PPTP, L2TP/IPSec and SSTP. All these security procedures combined provides you with the ability to surf the web, stream, access restricted sites and download torrents securely.
Pro Good selection of features
Pro Responsive app For Mac
Really nice and quick setup with macOS.
Pro Does SSL Pinning on OS X
SSL pinning protects against some forms of man-in-the-middle attacks that even SSL encrypted traffic is vulnerable to. Not long ago, iOS did not allow for pinning but that may have changed more recently.
Pro Responsive developer
The developer of Cloak is extremely responsive to feedback and quick to answer questions or support requests.
Pro Senses Trusted WiFi networks
Cloak can be set to not use the VPN on whitelisted WiFI SSIDs (like home/work).
Pro Unlimited devices (as long as they're OSX/iOS)
Unlimited devices and data per account, so you can connect up the whole family or office on one account if you so choose.
Cons
Con Previously provided user details to FBI to aid in investigation

Con They ignore people's inquiries
PureVPN offers 24/7 support by trained professionals. One of only a handful of VPN providers to offer 24/7 support by trained professionals.
Con Free version is limited to 3 countries
Con Need user registration to use
Con Speed is disappointing
Everyone touts PureVPN as being so fast but it's actually disappointing. Using pfSense and OpenVPN on a Core5 w/Intel NICs and AES-NI only averaged around 75Mbps downloads. They can do much better.
Con Not available in certain countries that are usually available from other VPNs
PureVPN’s services are not available in several black listed countries which are usually entertained by other VPN providers. It may frustrate the potential users.
Con Hasn't published server/data center locations
Con OSX & iOS Only, without even manual configuration instructions for Linux/Windows
