IDG Contributor Network: iOS 9: How to use the Purify ad blocker

One of iOS 9's most coveted features is its ability to provide ad blockers (content blockers) in mobile Safari. Purify is one of the first ad blockers for iOS 9, and it works surprisingly well to clean up the mobile Web in Safari.
[ Related: 7 tips and tricks for iOS 9 ]
I signed up for the Purify beta a while back, and got an email the other day inviting me to try it via the TestFlight app. So I installed TestFlight, then installed Purify on my iPhone 6 Plus. I wasn't sure how well Purify woul