where to start?

Good morning,

I currently own the following equipment:

- Mavic 2 Pro with Smart Controller and CrystalSky 5.5
- Mavic 3 Mini and Mavic 3 mini Pro with RC231 and DJI RC, respectively

I have been flying drones and capturing videos for a while now. Additionally, I have a background in GIS, and I am considering venturing into mapping. Since it may take some time for me to learn everything and acquire my first customer, Id like to try a modest plan first.

I have a question regarding compatibility:

- Will the CrystalSky 5.5 apk work with the SC and Mavic 2 Pro?

Furthermore, I am interested in mapping capabilities for the Mavic 3 Mini: I wonder if will need RC Pro to use the map pilot, will RC321 with crystalsky 5.5 suffice or do I need a tablet like ipad mini to attach to rc231?  obviously RM330 is useless because it can not be side loaded.

Many thanks!  Damian