OSMGo! probably doesn’t quite fit your use case, but is worth considering.

Okay cool, and you wipe the Trip1 folder after each upload? I was imagining that you had Open Camera set up to save a series of images to a folder, and then create a new folder for each set of images. So with your set up you can only do one image series before you upload?

I am really interested in your workflow here. I know others who have quit Mapillilary over lack of support on the Android app. How do you get your photos saved to one folder?

Was there discussion of event organisation software? I know a lot of it is handled on the wiki, but investigating mobilizon as a dedicated event platform would be cool.