Its not like facebook applications haven't had insane amounts of duplicated resources and crazy amounts of gigantic libraries/frameworks: https://blog.timac.org

Its not like facebook applications haven't had insane amounts of duplicated resources and crazy amounts of gigantic libraries/frameworks: https://blog.timac.org/2017/0410-analysis-of-the-facebook-app-for-ios-v-87-0/ https://blog.timac.org/2017/0410-analysis-of-the-facebook-ap... Not sure if its relevant for messenger or not, but I wouldn't be surprised if messenger was overly huge for the task its performing.