Notify Users When A New Version Of Your App Is Available

Arthur Ariel Sabintsev is the author of Siren, a Swift port of the Objective-C project Harpy, both offering notification to users when a new version of your app is available.

When a new version is detected (comparing installed version versus App Store), Siren has two options: show an Alert shown to the user, or notification in your app through a delegate when an update is available, allowing you to create and present a customized response.