They follow this rule: > If your app includes user-generated content from a web-based service, it may display incidental mature “NSFW” content, provided that t

They follow this rule: > If your app includes user-generated content from a web-based service, it may display incidental mature “NSFW” content, provided that the content is hidden by default and only displayed when the user turns it on via your website. — https://developer.apple.com/app-store/review/guidelines/#user-generated-content https://developer.apple.com/app-store/review/guidelines/#use...