While most smartphone users spent less than $100 on mobile applications last year, 16.5 percent doled out somewhere between $100 to $500 on software, topping the cost of their mobile handset, according to a new ABI research survey.

The amount of spending is significant, as most applications range from a few dollars to the about $25, said the research firm. The data released today was collected as part of an in-depth study ABI conducted on mobile application storefront trends.

The spend level should continue to increase as wireless carriers, handset makers and developers make it even easier for users to discover software offerings, ABI Senior Analyst Jeff Orr told InternetNews.com.

"Most consumers are still discovering how their device use can be expanded and customized. A fair amount are still not aware of capabilities new software can provide," Orr said.

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