These are what I noticed:

- "oder siehe So funktioniert es" should be worded differently, it seems to be two different strings

- "Ingenieure Zeichenketten in Schalter einwickeln" (From about page - I guess Zeichenketten is supposed to mean strings, which I think is more natural just leaving it untranslated, the sentence literally translates to "engineers embed strings/text into switches")

- the translated texts have quite long and complicated sentences, which feel unnatural (for example in the subtitle)

About pricing: I get it's early, though I think it'd probably be useful for users to have an idea of how much it might cost in the future, if they actually want to use it in a project.

The navigation also seems to overlap with the title on Chrome (latest Android)