https://arstechnica.com/tech-policy/2018/08/facebook-violates-apples-data-gathering-rules-pulls-vpn-from-app-store/

Facebook is the latest company to violate Apple's new app guidelines surrounding data collection. According to a report by The Wall Street Journal, Facebook pulled Onavo Protect, a VPN app, from Apple's App Store after the iPhone maker determined that Onavo violated its data-collection rules.