Your login and password go straight to Niu and aren't stored anywhere.
Your scooters and trips are saved only in your browser.
Niu's trip list only accepts requests from its mobile app, so this site's server fetches your trips for you.
Your access token and the trip details Niu sends pass through it, but nothing is stored.
This site isn't affiliated with Niu in any way.
It was built by reverse engineering the Niu mobile app, so it may give wrong results or stop working at any time.