Even with the monopoly Facebook behaved pathologically, often escaping Apple's sandbox through technical exploits and their analytics/auth "SDK" that almost all

Even with the monopoly Facebook behaved pathologically, often escaping Apple's sandbox through technical exploits and their analytics/auth "SDK" that almost all iOS apps include. They're social influence extends to Apple, not just your friend group. Apple is also significantly more careless than I would like, there's no source code audit and no instrumentation beyond a network proxy. Just a 15 minute or so inspection of the app UI. If I wanted to run an authoritarian computer regime I would require full source submissions and clear explanations that looked even moderately obscure. Preferably your assigned app reviewer would be present during internal code reviews.