Install APK pure.
Use apk pure to install MacroDroid
Use MacroDroid to create a macro that close DJI Go and open you desired app (I tested with dji pilot and it's worked fine)
Run this macro.
You can install third-party apps, but it will not detect the aircraft.
So you need to install some app (like MacroDroid) to make a macro that close DJI GO (default app that comes with controller) and open the desired app.