I have a dji mini 2 and want to buy a ipad air 2 with 16GB wifi and cell.
will the ipad air 2 works  with dji Fly app?

Hi there. Thank you for reaching out. As per checking here, it shows that the Ipad Air 2 is compatible with the DJI Fly app and you can use this to initiate the DJI Fly app for your DJI Mavic Mini 2. For more compatible devices, you may refer to the link below. Thank you for your valued support.