Ladescout - Find the cheapest EV charging card at any station in Germany

It annoyed me having to guess which charging card offered the best rate at any given charging station (tariffs vary by up to 30 ct/kWh depending on the operator). That’s why I built Ladescout: https://ladescout.de — simply tap a station to see the cheapest option among 25 cards, with AC and DC listed separately. It’s free, requires no sign-up, and uses charging point data from the BNetzA (Federal Network Agency) registry. It’s a personal project of mine, and I’d appreciate honest feedback: which tariffs are missing, or where are the prices incorrect?