Completely inaccurate WMATA predictions using official app

Hi! I got a tidbyt, and live in the washington dc area, but found that the WMATA app is insanely inaccurate, predicting trains last closing, predicting trains that don’t exist etc. I would like to know what API you use, as WMATAs official API is free for up to 50k requests per day. Comparing it to official trackers on WMATAs website, and other third party apps, the official tidbyt app is completely inaccurate. it looks beautiful, but is not functional at all. Is it possible for users to use their own official WMATA API keys? Can you guys use an official WMATA API?