App revenue generated from tablet PCs is expected to surpass the smartphone app revenue in 2017, according to a report from ABI Research.

According to the report, additional spending of the tablet users for apps compared to the smartphones due to larger screen size and better user experience for gaming and reading are expected to drive the growth.

The app revenues generated from smartphones is currently more than the app revenues from tablets, and the trend is expected to be reversed in future.

In 2013, the global mobile app market is expected to reach a value of $27bn, as the applications are becoming an important deciding factor in the competition between the mobile operating systems (OS).

ABI Research senior analyst Josh Flood said that the iOS continues to lead the way, and the OS is projected to generate over two-thirds of the revenues for smartphone and tablet apps in 2013.

"Although Google’s Android OS recently surpassed Apple in terms of total app numbers, iOS users continue to prove they’re more willing to depart with their cash," Flood added.

"The revenue gap between the two leading OSes looks unlikely to close over the next 18 months."

The analysts said that BlackBerry and Windows have started dividing their respective apps catalogues for the 3rd ecosystem though they are far behind Apple and Android.