On iOS: Locate the KML/KMZ file and drag & drop it into iTunes Aero App Documents.
- Steps on sideloading can be found here: Sideloading data into Aero App iOS via iTunes?
On Android: Locate the KML/KMZ file and drag & drop it into AeroApp > MovingMap folder inside your Android’s device storage.
- Steps on sideloading can be found here: How can I sideload Cycle Data into Aero App Android?