There’s a lot of metadata changes in the new iOS 11 App Store. One of the most significant additions is your app’s subtitle, which appears pretty much everywhere your app’s name shows up.
If you’re putting off adding your subtitle until iOS 11 officially launches, don’t. With Apple’s public beta program, some of your customers are using the iOS 11 App Store right now, and the number of people using it will continue to increase.
Browsing the App Store in iOS 11 beta is an entirely new experience. Apps that have updated their metadata to include a subtitle stand out, especially in search results.
Apps that don’t have a subtitle show the primary category for the app instead. There’s a huge difference between this:
Beautiful notes and prose
So, if you’re uploading a new build, fill in that subtitle field.