Transfer of WhatsApp chats from Android to iPhone.
Spent ages trying to get WhatsApp chats from my old Android to a new iPhone. This app let that take place, after some fiddling and subscribing for a year (at considerable cost). I had to change my old Android device into developer mode and connect to a Mac to make this happen. There were no hints that developer mode would be needed in the instructions and I needed to download yet another app to find out how.