Peace, which launched yesterday at a price of $2.99, is currently at the top spot, followed by Crystal ($0.99) at number two and Purify Blocker ($3.99) at number four. As of Friday morning, ad-blocking apps accounted for three of the top five paid apps, and four of the top 20. Ad-blocking apps have surged to the top of Apple's paid iPhone app chart in the US, just days after the release of iOS 9.
