Every now and then we like to survey some of the best mobile apps available, as the software industry is constantly in flux with new products being released and others going extinct.

The Apple iPad may have more competitors these days, but it seems to be doing just fine in terms of customer satisfaction.

It probably comes as no surprise to many owners of the Apple iPad 4 and iPad mini that these devices are still the most popular in the country, given how little you hear about competitors in this market place.

Recently, we wrote about the U.S. Air Force's efforts to replace its flight manuals with iPads in order save space and fuel while making life easier for pilots..