According to the latest research from app store analytics provider Distimo, over 50% of mobile apps are priced below or equal to $2 in Android Market, Apple’s App Store for iPhone and iPad, Nokia’s Ovi Store and Palm’s App Catalog.

The exceptions to the rule are BlackBerry App World (which doesn’t allow apps priced below $2.99) and Windows Marketplace for Mobile.

Zooming in on the different App Store versions, Distimo’s research unveils that the percentage of applications priced $0.99 ($0 – $1) is much higher in the App Store for iPhone than in the App Store for iPad.

As for the percentage of applications priced $1.99 ($1 – $2) it’s similar between these two stores, while the percentage of applications priced higher than $3.00 and below or equal to $10.00 is higher in the Apple App Store for iPad than in the Apple App Store for iPhone.

The average price of all paid applications and the 100 most popular paid applications in the Apple App Store for iPad ($4.65) is higher than in the Apple App Store for iPhone ($4.01). However, the average price of the 100 top grossing applications is higher on the Apple App Store for iPhone

The Android Market sticks out with a 57% share of free applications, way more than what the other stores average. Most of them clearly circle around 25% free vs 75% paid, Distimo’s research shows.

Distimo, besides, underlines that while Android Market is available in some 46 countries, users in only 13 of those are able to download paid apps, while developers from only 9 countries can distribute them in Android Market (much to the dismay of developers and users around the world).