iPhone 18 Pro's Third Live Activity in Dynamic Island Is System-Only

Apple's slimmer Dynamic Island cutout on iPhone 18 Pro models supports up to three simultaneous Live Activities. However, the third activity in iOS 27 can only be a system one, such as Now Playing or navigation, not a third-party app.

• iPhone 18 Pro's Dynamic Island supports up to three simultaneous Live Activities
• The third activity in iOS 27 is limited to system apps, not third-party ones
• The limitation was spotted by code explorer pdfu
• It stems from the slimmer cutout on the new iPhone 18 Pro models