If you have a Mac, which you most likely do, you have probably used the blazingly fast Spotlight search feature on it. Furthermore, if you love this feature on your Mac, you have probably used it on iOS as well. Spotlight is a highly optimized search engine that enables you to find content throughout your device.
If you haven't used Spotlight, try swiping down on your home screen on iOS and use the search box. Or, on your Mac, press command + space to open the Spotlight search dialog.
Spotlight has been around since iOS 3. However, it wasn't until iOS 9 that Apple opened up Spotlight to developers. This means that starting with iOS 9, Spotlight indexes everything from web results, apps, app store results, and any content you add to the Spotlight index yourself. Spotlight presents search results with an image, a title, and some extra information...
