According to WinAppUpdate, there are now 20,610 apps worldwide in the Windows Store and 17,958 of those apps are free. In early October before Windows 8's launch, it was reported that there were over 3,600 apps in the Windows Store. The growth of the Windows Store has been very quick over the last few weeks and developers are publishing their apps at an increased rate.
"20,610 apps worldwide in the Windows Store (broke 20,000 on Tuesday, I believe). 17,958 of those are free (87%)," @WinAppUpdate reported via Twitter. On top of that, 12,675 of the apps are in the United States. This is great news for Microsoft, as it shows that more and more developers are publishing their apps to the Windows Store. To put things in perspective, there were only 3,600 apps in the Windows Store just three weeks before Windows 8's launch. We are also posting Windows 8 app highlights every week highlighting an app from the Windows Store and you can check that out here.