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Hi there!I'm trying to figure out whether using IAP is obligatory in my case?or I can use a 3rd party payment provider like Stripe.I scrutinized the Apple development guidelines, but the requirements are quite vague there. ---------------Hi! I'm building a recruitment marketplace application. There will be two user types: 1) Recruiter (posts a job); 2) Candidate (applies for a job). I plan to monetize it by asking a recruiter to pay a particular amount for each job post. No subscription, every job post will be charged separately.