Hi guys, I bought a drone from China. The seller suggested Fly FTP app supposedly available on Appstore and Google play. I found it only on Appstore. For Android he finally suggests an apk working on Microsoft edge. The model is XiL 193 S. On the web I found only references to 193 max. My concerns are 2: 1) risk to be fake and 2) security risks for installing the apk to my phone. Opinions? Thanks in advance guys.