In the past six months, Apple doubled the size of its iPad App Store to 10,000, though total number of applications for iPhone and iPad stands at around 200,000, as of Memorial Day previous month.

Apple’s chief executive Steve Jobs claimed at the recently held Worldwide Developers Conference that the company received over 15,000 new application submissions per week. Meanwhile, Apple has also started accepting contributions for iOS 4-compatible applications, which is the next iteration of the iPhone and iPad operating system.

Separately, Google's Android operating system’s market share is also on the rise. Figures released by AndroLib. com shows that Android operating system has jumped to a total of around 72,000 applications. In May 2010, around 14,294 new applications added to Android as compared with 1,669 new apps in July last year.

Google said it was activating around 100,000 new Android-based phones each day. It also claimed that it shipped nine million phones in every three months as compared with 8.75 million iPhones shipped by Apple last quarter. As per NPD data, Android has secured second position behind RIM's operating system in the smartphone operating systems market. NPD data said that Apple trailed seven percent behind Android at 21 per cent.

However, Mr. Jobs did not agree with the NPD data in his Worldwide Developers Conference keynote.