iPhones have been pretty good about allowing you control over how much data apps can access. You can force apps not to track your data and stop them from accessing your location, microphone, and camera unnecessarily. But before iOS 18, whenever any app asked for access to your contacts, you had a choice between either letting it scrape your entire address book or denying it access to any contacts at all. That has now changed, with the latest OS update letting you grant apps access to just a few contacts.