Despite its slow start, Facebook for Android surpassed the daily users over Facebook for iPhone.

The mobile app for Android clocked in at 58.3m daily active users compared to iPhone’s 57.4m, according to AppData.

Daily active users, or DAUs, relates to how many individuals open up an app on a daily basis. An app's monthly active user gives a clearer picture of an app's overall growth patterns. When it comes to the monthly active users, however, iPhone is still the leader.

“This could indicate that Android devices appeal to a younger, more Facebook-engaged audience, or to more hard-core technology users in general. The iPhone’s role as a fashion and status symbol may be drawing less engaged users,” writes TechCrunch’s Josh Constine.

Facebook itself is accessed quite a lot from mobile devices, so much that half of the users currently access the site through a mobile device.

50 percent of the more than 500 million active Facebook users currently access Facebook through their mobile devices (250M) compared to 25 percent a year ago (100M out of 400M). 33 percent of Facebook posts are sent via mobile devices.

Through dedicated Facebook pages, blogger Benedict Evans calculated how many people use each Facebook app on each mobile platform, such as the iPhone or Blackberry.

Evans estimated that smartphones from Samsung, HTC, Motorola, Sony Ericsson and LG jointly account for about 24 million users, while the official Android Facebook app accounts for about 53 million users. Android, in all, has approximately 76 million Facebook users, in spite of having sold only about 120-130 million handsets.

About 50 percent to 60 percent of users of the iPhone and iPod Touch use Facebook. Since Apple has so far sold about 190 million of these gadgets, the number of Facebook users is estimated at around 85 million.