Advertising and mobile analytics company, Flurry, has released some new stats on the reach that mobile apps seem to be enjoying. The take-away here is that the number of people using mobile apps in any given day, at least the apps that Flurry tracks, seems to be growing into a sizable group of people, albeit a bit fragmented across platforms and devices.

Flurry estimates that there were 224 million active mobile users in apps tracked this past February across iOS and Android, which is a bit more than the number of active users (221 million) during the same month on laptop or desktop computers, as measured by comScore, a similar company that tracks computer user data.

According to mobile industry analyst, Bernie Evans, Facebook reported a huge growth in mobile app Facebook use, with Android users growing from 66 million users in September 2011 to 175 million users this past September. iPhone users also increased greatly, with the number of users of the iPhone Facebook app growing from 91 million last year to 140 million this year.