Hi Michael,
As you requested, I’ve put together a small example (attached) of how to upload to Dropbox from an MWorks experiment. I’ve tested in on both macOS and iOS.
The example uses a Python file resource to establish a connection to Dropbox and define an upload function. After every 10 trials, it uses a run_python_string action to invoke the upload function, which pushes an updated results file to Dropbox.
The results file is very simple: just plain text with a few numbers. Obviously, you could make it as complex as you want, upload multiple files, etc.
If you have any questions, please let me know.
Chris