Mickeycaskill writes: Apple has pulled a number of applications from the App Store, most notably the "Been Choice" ad blocker, because of concerns the methods they employ to rid adverts could compromise sensitive user data. iOS 9 allows for the installation of applications that block adverts in Safari, but other apps like Been Choice go one step further and let users remove adverts from applications – including Apple News. Been Choice routes traffic through a VPN to filter out adverts in some applications, but it this technique has attracted the attention of Apple, which is concerned user data could be exposed. Apple says it is working with developers to get their apps back up and Been is refining its application for resubmission. In any case, Been says users must opt-in for in-app ad blocking and that no data is stored on its servers.