Why Your Expo App Crashes on Launch in a Production Build (and How to Fix It)
An Expo app that runs fine in development but crashes on launch the moment it is a TestFlight or App Store build is almost never a code bug you can see. It is a difference between how the dev client and a release build load your app. Here is the short list of causes, in the order I check them, and how to read the crash log that names the real one.
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David