Looks like 4.5 is the latest version of Dolphin HD. Here's the link (copied from the "Resources for New Edge and Pocket Edge Owners" thread): http://www.freewarelovers.com/androi...hin-browser-hd
. See if that works better.
Did you try Googling "Shazam apk"? I don't know what it is, so can't help much!