Spotlight for iOS can be a convenient app launcher on iPhone or iPad. Activate Spotlight by swiping down on the home screen, type the app name and then select the app from the drop down list to launch the app.
At times you might have forgotten about the name of the app. Fret not, there is a neat trick that you can use to list down all apps in Spotlight.
Just summon Spotlight as usual. Enter a slash (/), dash (-) or a period (.) at the search field. This will display all apps installed on your iOS device. Scroll the list to select the app and tap on it to launch.