No menu on mobile

I've asked on Facebook for people to check out the new theme on my website and while people love it, almost everyone is stating that they can't see menu bar. So far, I've been told the menu bar is missing on: Samsung S3 iPhone 5 on Chrome (works on Safari on my phone) Galaxy S3 Chrome or Mozilla or Android HTC Vivid iPhone 4S on Chrome or Safari Samsung Galaxy Chrome or native browser iPod Touch 4th gen Safari All of the comments for people with tablets were that the menu bar showed up and it looked just like the desktop version. While I love the theme, unless this is fixed, I won't be able to keep it. http://www.archcityhomes.com