#AppFatigue IPA: /æp/ /fəˈtiːɡ/ (n) The tendency to NOT install new apps on your mobile phone because you finally understand that most apps should just be a website so you can seamlessly use a service on a PC, laptop, tablet or mobile device. Also a sign of distrust as apps are black boxes with access to a lot of data sources that invade your privacy in ways you can hardly quantify.