More than 10 billion apps have been downloaded from Google's Android app store, the search engine has revealed.

According to Google, the number of apps downloaded from the Android Market, its official app store for devices running the Android OS which was launched in 2008, has grown one billion in the past month.

"One billion is a pretty big number by any measurement. However, when it's describing the speed at which something is growing, it's simply amazing," Google said in a blog.

To celebrate the milestone Google is offering a selection of apps for 10p every day for 10 days.

"We'll have a new set of awesome apps available each day," Google said.

Paper Camera, Sketchbook Mobile, Soundhound Infinity and SwiftKey X are among the apps available for the bargain price on the first day, Wednesday December 7.

"We can't wait to see where this accelerating growth takes us in 2012," the search engine added.

It took Google 22 months to hit the one billion downloads milestone, which it reached in July 2010. Although growth has surged since then, most dramatically in the last month. However, in contrast Apple took just nine months to reach the one billion downloads mark, after it launched its iTunes app store in July 2008.

Geoff Blaber from analysts CCS Insight told the BBC: "Apple announced the 15 billion download mark in July, so it's clear that Android's momentum in device activations is translating to application downloads and usage."

"We'd expect Android to overtake Apple in application downloads in the first half of 2012."