One iOS browser that doesn't suffer from this IP address leakage issue due to HTML5 video tags or XMLHTTPRequests is Safe Browser Secure. has documented examples of iOS TOR browsers that leak the user's real IP address. The only suggestion here is to periodically check the app using IP address tools including the site referenced below.įinally, iOS browsers can leak the IP address because of a bug, or feature, of UIWebView which has it bypass NSURLProtocol for HTML5 video and XMLHTTPRequests (used for AJAX web sites). The HTML5 geolocation API can not be disabled in UIWebView but it will prompt the user each time the page requests the location.Īn important issue when deciding whether an iOS app can be trusted is whether you trust the developer. NSURLProtocol is used to redirect web requests to TOR, or any other app specific code. IOS TOR browsers are all built using the iOS components UIWebView and NSURLProtocol. TOR browser bundle users normally take longer to upgrade, and there is a large user base on versions older than the most recent. That said, iOS owners update their software promptly, or automatically, so the new version would be in use within a month. On top of that a new tor version would have to be incorporated into the app and tested, so it will be three weeks to release. To address your release cycle question, iOS apps currently have a two week review period. There are now many Tor Browsers on the iOS App Store, some are clones/forks of the open source Onion Browser.

Tor onion browser