First rejection: Missing privacy policy. Fair. Second rejection: App icon had transparency – apparently that's not allowed. Third rejection: I forgot to add ITSAppUsesNonExemptEncryption = NO to Info.plist. Each rejection took 24-48 hours for review. That's almost a week of waiting. What I learned: Read Apple's guidelines like a contract, not a suggestion. And test EVERYTHING before submitting. Now I have a pre-submission checklist with 22 items. It's boring but it works. Fellow devs: What's your worst App Store rejection story?