Right, if you have an Android it should run Google Chrome! Once you sign in to Stunt Hanger you can just bookmark the URL and then you only need to tap the bookmark to go to SH in the future.
There should be an Icon for Chrome on your screen. On mine I leave SH running and I can tap Chrome then tap the Stunt Hanger tab and I am on board! If you close the SH tab, you can always use the bookmark which is available when you open a new "tab".