I like and use many of the apps noted here. For us Canadians, the TimmyMe app is a great one.
I've tried some compass apps on our iPad but never had much luck with them, so I keep a real compass in the trailer.
I just bought my DW a Nexus 7 for her birthday so we'll have to try out the Google apps to see how they compare to the iPad apps.
2011 Rockwood Signature Ultra Lite 8293SS, 12K Equal-i-zer
2016 Ford F-250 XLT SuperCrew, 6.2L, 4x4, 6'9" bed, 3.73
2010 Rockwood Roo 23SS (2012 - 2014)
2009 Ford F-150 XLT SuperCrew, 5.4L, 4x4, 5'6" bed (2012 - 2016)