Download Merlin Bird ID for iOS and Android Apple Merlin runs on iPhones and iPads with iOS 14 or newer, and M1-equipped Apple computers. To download, click on the button below or search the App Store for “Merlin Bird ID.” Android Merlin runs on devices with Android 5.0 or newer and 1 GB of free space. To download, click on the button below or search Google Play for “Merlin Bird ID”.