The milestone was first noted by Microsoft quietly on its By The Numbers page. Venture Beat got some additional info via a Microsoft spokesperson, who stated, "There are more than 527,000 apps in the Windows and Windows Phone Stores combined." About 187,000 apps are available in the Windows Store, according to Microsoft, and the Windows Phone Store now has around 340,000 apps. The store passed the 300,000 app milestone in August.
These numbers come at something of a turning point for Microsoft in terms of app development. The company has already announced plans for just one app store for the upcoming mobile and PC launch of Windows 10. It's also trying to get developers to make universal apps that will allow users to purchase a Windows Phone app and get the Windows 8 version for free, and vice versa.
Will we see more Modern-based apps once Microsoft launches a universal store for those apps?