Many of the best ad blockers are available for free, either as extensions or as standalone apps, though a few, like AdLock, charge a fee. The usual caveats apply: Browsing through Tor will slow down the web experience, and some features, like video streams and video files won’t work in order to preserve anonymity.ĭownload Onion Browser: iOS How to choose the best ad blocker for you Previously a premium app, Onion Browser has since moved to a donation model, opening up access to everyone who wants to download the app, without compromising security or features. IOS users aren’t left out when it comes to browsing the Tor anonymizer network, with the Onion Browser among the more popular options on Apple’s mobile OS.