This is the mobile version of this WebSDR.
It should work using most browsers on iOS devices and on Android devices.
Tuning is different from the Desktop version: drag on the waterfall or use the arrows to change frequency.
The page loads with a 12khz filter but you can change the AM filters. Choose AMN for 5khz DX filter, AMW for 15khz wide, or AM for a standard 10khz filter. There is also an AM Lower & Upper option.