IOS9 which content blocker?
There seems to be quite a few of them and none I've heard of...
Here’s the current list, in alphabetical order:
1Blocker, from Salavat Khanov
Adamant, from Cory Bohon
Blockr, from Tim Poller & Arno Appenzeller.
Crystal, from Murphy Apps.
Freedom, from Zach Simone.
Purify, from Charismatic.
Silentium, from the Silentium team.