With the release of Version 2.0 of BlackBerry AppWorld, RIM added an option to purchase applications via carrier billing for select carriers. This is an option that is growing in popularity, and results in twice as many applications being sold by the average customer on carriers who support carrier billing.
The above chart shows the comparative amount of sales for the seven largest North American wireless providers, normalized by the size of their BlackBerry customer base. Of these carriers the two that support carrier billing in AppWorld (AT&T and Telus) see their average customer twice as likely to buy applications then a user on any of the other networks.
The measurements in this chart are relative to the number of purchases at Verizon Wireless (the largest carrier), such that Verizon would always have a value of 1.00X. The number of purchases is based upon purchases of Pixelated Plus from January-March 2011. Normalization for carrier size was based on data from the free application Pixelated over the same time period. All data was collected through BlackBerry AppWorld at the time of download.