Google’s Android Market witnessed the highest overall growth rate as compared to other online app stores such as RIM’s BlackBerry App World, Nokia’s Ovi Store and Apple’s App Store in 2010, according to a report released by app analytics firm Distimo.

Google, RIM and Nokia were also faster than Apple in adding mobile phone software to their app stores, the report added.

Android Market touched 130,000 apps in the US by December 31 – nearly six times the number at the end of 2009. Nokia’s free apps, meanwhile, increased ten-fold making its total US apps to triple to 25,000.

RIM’s app store more than tripled last year to 18,000 apps while Apple’s iPhone US offerings doubled in 2010. Apple’s iPhone US catalogue included almost 300,000 apps.

The report also added that the average price of the paid app declined across all platforms in 2010.

Paid downloads increased almost 30 per cent more than free downloads in the top 300 when compared to the same figures of December 2010 to those of June 2010.