Meta Dustin Shahidehpour

Meta: The evolution of Facebook’s iOS app architecture

Original post The evolution of Facebook’s iOS app architecture

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Article Summary

Meta's Facebook iOS app went from a 30-second launch time disaster to one of the most sophisticated mobile architectures in the world. Here's how they did it over 10 years.

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More on Rewrite New Rider App Architecture Uber Sep 18, 2020 More from Meta How Meta is Translating Its Java Codebase to Kotlin Meta Feb 25, 2025 Also on iOS You Don't Need a Rewrite: Expo's New Brownfield React Native Story Expo Oct 12, 2026

This page summarizes “The evolution of Facebook’s iOS app architecture” by Meta, published Feb 6, 2023. All credit for the original work goes to the authors.

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