What do you block? iAntiSpy is configured to block Criteo, Adroll, Atwola, Google Analytics and tag related services, Taboola, Quantserve, Microad, tracking by various social networks and many more! We'll continue blocking more things with every new update. Which browsers are supported? iAntiSpy supports blocking in Safari only. Any 3rd party apps using the system webview are not affected. Is iAntiSpy able to determine which sites I've visited? No, this is technically not possible. Am I able to selectively enable or disable blocking of certain tracker types? No, at this stage it's all or nothing. This feature may be made available in a future version of iAntiSpy or iOS. Can I be alerted when something has been blocked on a page? This functionality has currently not been made available to iAntiSpy.