Your Mac and iPhone are building a private search engine in the background. That’s why Spotlight sometimes feels broken.

Apple’s Spotlight is not just a search box. It is a local, on-device index of almost everything on your phone, iPad, Mac, or Vision Pro: documents, emails, messages, photos, notes, contacts, music, settings, and more. Siri can pull from the same index. Apple says the index stays on your device and is not shared with Apple or your other devices.
That last part is the point. Spotlight is not a cloud search product. It is a private catalog that has to be built, updated, and occasionally rebu