Deferred deeplinks on Apple platforms

Deferred deeplinks allow App developers to know what link drove an install. This information can provide insights into marketing link performance and provide user continuity when moving from Web to a fresh App install. On Android, the Google Play Store provides Apps with an install referrer. The Apple App Store does not provide a similar feature. Instead, iOS apps can copy/paste links to deterministically provide deferred deeplink functionality.

1. On Apple platforms, show the app download link with a copy/paste option.
2. User clicks the link. Link is copied and the App Store opens.
3. On first App open, App checks the pasteboard for a link.
4. App resolves the link payload to routes appropriately.