As of iOS 18.2, Apple's Mail app features categories to help users sort through their mail. Here's what it does, how to fine-tune it, and how to turn it off if you prefer.The four pre-set categories in Mail starting with iOS 18.2.After updating to iOS 18.2 or later, the Mail app now categorizes incoming email into four broad categories. These are Primary, Transactions, Updates, and Promotions.The idea to automatically categorize incoming emails has been kicking around Apple for years. The feature was originally intended to debut in iOS 13, but awaited further development of Apple's machine learning and Apple Intelligence features in order to ensure the work was all done on-device. Continue Reading on AppleInsider | Discuss on our Forums