Nielsen has found that Android users tend to spend over an hour a day on their phones. Sixty-seven percent of their time is spent "working" with apps while the rest is spent on the mobile web. Forty-three percent of those apps are top 10 Market apps while the top 50 apps are used 61 percent of the time. The rest of the apps - all 250,000 of them - are used the rest of the time.

The stats come in advance of Neilsen's free webinar, to be held on September 15.

Read More: Android Phone Owners Use Their Devices For An Hour A Day