First thing I do when evaluating products: checking their imprint and data policy. I didn't find them. You guys are https://automat.berlin/contact/ , right? A GmbH. For credibility, legal, and fine reasons, get a product-specific imprint and data policy up and available as soon as possible.
You look for the data policies before looking at the actual product? Why?
In addition, not having an imprint is actually in breach of German law — I'd add that ASAP or you'll get a nastygram from some zealous automated lawyer bot.