Good afternoon can I fly a DJI Mini \drone just with the phone Fly app
Welcome to the forums @marmarino62.
Sadly, the only way to fly the Mini is using DJI Fly WITH the included remote controller, although you can fly the Mini without a phone and just a controller.
Here is an article on this: Can You Fly the DJI Mini 2 with Just a Phone? – Droneblog