But iPod touch users are the keenest on downloading apps, according to new research from AdMob.
New research from AdMob shows Google has work to do if it wants Android to be as big a market for paid apps as iPhone.
The company's January Mobile Metrics report includes a survey of consumers, which finds that while 50% of iPhone users buy at least one paid app a month, only 21% of Android users do.
The survey also focused on overall downloads - free and paid. On average, iPhone and Android users download nine new apps a month, while Palm webOS users download six.
However, iPod touch users download an average of 12 apps a month, making the device top dog in this metric.
What's more, iPod touch owners use apps more, spending an average of 100 minutes a day using applications, compared to 87 minutes for webOS users, 80 minutes for Android users, and 79 minutes for iPhone users.
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The iPod touch is clearly appealing to a younger audience, too. AdMob says 78% of iPod touch users are younger than 24, and that the average iPhone user is 14 years older than the average iPod touch user.
The survey also found that 73% of Android users are male, compared to 56% of iPhone OS users (including both the iPhone and iPod touch).
Another interesting finding from the report: 17% of AdMob's ad requests in January came from non-phone devices - up from 12% in July last year.
The company also asked people if they were interested in buying an iPad. 16% of iPhone users said they were, compared to 11% of webOS users and 6% of Android users - with the latter group equally interested in buying a Kindle.
The survey focused on 960 respondents, although one gap is that BlackBerry owners weren't canvassed, since AdMob doesn't serve ads into BlackBerry apps.
The full report can be viewed here.
