Hey Markus from Lobe here :) all images and labels stay private to your computer, we don't ever see any of it. We only collect some generic app usage data for telemetry if you opt-in to sharing analytics after installing Lobe.
I was wrong, Lobe has done a little bit of communication online. It was the lobe backend process I checked previously.
Downloaded 20.42kb and upload 5.78kb.
(Screenshot https://ibb.co/VLbSHQv)
I turned off sending crash info, analytics... in settings.
We do not send any app analytics when it is turned off.