At the bottom of the app you'll see where it says quick reply, if you go to the left of that you'll see an up arrow. Click on that and that will take you to where you can upload pictures.
I do them both I grow at home in organic soil and home made nutes, and am a med grower at work in rdwc in net pots and collars 36 sites. Plus mothers idk around 50 in ebb and flow/flood and drain, in net pots and hydroton.