I hate this company. My college's alumnae network uses it to send out photos, and whenever I forgetfully click on a photo, the winding gyre of death starts and does not stop until thousands of photos are on my poor phone. I am unable to close the window or use my phone's browser. Don't ever click on a photo if you think it might be SmugMug. If you make the mistake of opening it, shut off your phone, and when you reopen your browser IMMEDIATELY close the site. You will have less than a second to do so. Fun stuff.
PS I have iPhone 5