Hi Leon,
the Moodle Mobile app always perform the same steps to connect to a site:
- Try the input URL with https protocol.
- If it fails, add or remove 'www' from the URL and try again with https protocol.
- If it fails, try the input URL with http protocol.
- If it fails, add or remove 'www' from the URL and try again with http protocol.
If you look at the network tab you should see those 4 requests.
Cheers,
Dani