With iOS 27.2, Apple has replaced the old App Access controls with a redesigned Excluded Apps feature. It lets you keep specific apps away from Siri, Search, and suggestions from a single list, making it far simpler than before.
Previously, excluding an app meant opening Settings, Apple Intelligence & Siri, Apps and adjusting each app's toggles individually. That included a switch that let Siri "Learn from this App" and several suggestion options that appeared in Search and widgets. Some of these switches controlled on-device personalization rather than access to an app's contents. Fully keeping an app's content out of search results also required turning off a separate "Show Content in Search" switch buried in each app's menu in Settings.
In iOS 27.2, Excluded Apps consolidates all of this into one multi-select list. Add an app once and it becomes unavailable to Siri, Search, and suggestions. To set it up, open the Settings app, tap Siri, tap Excluded Apps, then tap Add Apps, select the apps you want to exclude, and confirm.
Excluding an app can disable some Siri features for it. The Electronic Freedom Foundation found that excluding Messages stops Siri AI from reading or replying to messages. Onscreen awareness, which lets Siri answer questions about what you're viewing, will also no longer work in any excluded app.
To restore access, tap Edit in the Excluded Apps menu, tap the minus button next to the app, and tap the checkmark at the top to confirm.
Source: MacRumors · Summarized by HeadlinesBriefing