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Thanks, it's astonishing how many teams make this mistake, simply putting some hungry library into the code to solve some story without thinking much further about the overall implications

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I'm like 90% confident that it's their crash tracking or analytics library :P

Edit: It's a framework from Salesforce called "ServiceCore". In case you were wondering it decided that it was necessary to request a list of all frameworks in a static constructor so it could find one that contains a certain class of theirs that does bundle-relative image loading. Pro tip, don't do this.

How can you tell which framework it is?

I pulled open the app and looked for frameworks with approximately 9 static initializers, one of which called into NSBundle. ServiceCore was the one that matched.

I don't know if it's still the case, but some third party libraries are required to run on launch.

I worked on a an app where the Facebook login library took 600ms to load, and was required to run on launch.

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