Apple lead Google by a fairly large margin when it comes to revenue generated by apps, with numbers from Piper Jaffray analyst Gene Munster suggesting Android-based users are conservative when it comes to shopping on the Android Market.

The analysis shows that Android users seem to shy away from purchasing commercial apps, when compared to iPhone and iPad users who have purchased 12 times more paid apps per device. 13.5-percent of iOS customers purchase apps whilst just 1.3-percent of Android users opt for non-free software on their devices.

Those numbers mean nothing unless we're talking dollars, right? The Android Market generated just shy of $350 million in gross revenue, where Apple's App Store pulled in an impressive near-$5 billion. Both companies take a 30-percent cut of these totals, which is very impressive as they're just hosting them.