The one on the play store is for the Inspire, which just so happens to work w/ the P3. The one on the DJI site is the version that directly supports the P3, which is why they are different. Sideloading in android is not an uncommon practice.OK, figured out that the download from DJI version of the app is quite different from the Google Play Store version. Hmmm. Don't like subverting security (Lenovo). There is a reason that the iOS app was delayed.