Under the Hood: Integrating standalone mobile app features into Facebook for iOS

This post details the technical and organizational evolution of integrating standalone mobile app features (specifically Camera and Messenger) into the core Facebook for iOS application. It highlights the shift to a unified product team model responsible for cross-platform experiences, the use of native code and timed release cycles for faster development and deployment, and the strategic decision-making process for feature integration based on user experience and added value to the core app. It also mentions the technical implementation of integrating Messenger's chat access (left swipe) and Camera's multi-photo selection into the core iOS app.