Onion Browser 1.5.0 Onion Browser has received a security audit and pentest by Cure53.de, funded by the Open Technology Fund at Radio Free Asia. See https://mike.tig.as/onionbrowser/security/ for details and more up-to-date security information. See https://mike.tig.as/onionbrowser/ for more information about the app. For continuing updates, the source code repository can be viewed and followed at: https://github.com/mtigas/iOS-OnionBrowser/