Switching from Android to iPhone? Learn how to transfer everything to new iPhone, contacts, apps, and WhatsApp chats quickly ...

Turn on your iPhone and follow the setup instructions. On the "Apps & Data" screen, choose Move Data from Android. Download the Move to iOS app from Google Play or scan the QR code on your iPhone.

One of Apple's apps for Android has popped up on the Google Play's store top downloaded apps over Christmas. Here's why the "Move to iOS" app has launched itself into the top 40, and what it does.