Windows 8 is set to reach a milestone in the coming hours, where they'll breach the 40,000 application mark sometime soon. Data collected by MetroStore Scanner shows that since December 27 last year, over 5,000 applications have been added to the Windows Store in Windows 8.

Breaking them down into a per day basis, we're seeing around 156 apps added to the Windows Store everyday. This per day number can be a bit of an average, as no apps are approved on Mondays, and Sundays are a slow day, as with most industries. The rate is definitely down from the 14,557 apps that Windows 8 grew by in the first 35 days as they hit the 35,000 app milestone, where the per day application rate was sitting at 415.

The holiday period saw over a million Windows 8-based devices sold, so these numbers should continue to swell as developers continue to code apps for Windows 8.