If you are looking to create applications for Microsoft's app stores, we highly recommend that you check out the Windows App Studio beta. The App Studio makes it easy to take an idea and turn it into an app very quickly.
If you are one of the 1.1 million users who have taken advantage of App Studio, there is good news for you as Microsoft has released a new version of the product. In this update, it is now even easier to publish your app to the Windows Stores.
After you create your app, you can now download a .zip file that contains your 'store-ready' package, up to six screenshots, a logo and instructions to publish your app to the Microsoft stores. Along with the easier submission process, there are new data sources for photos from Instagram, Flickr and dynamic / static collections. Also, you can now use YouTube playlists as a data source.
One criticism of the Windows app stores are their shortage of applications when compared to iOS and Google Play. While App studio does make it quite easy to create apps, we know that these are not the types of applications users are requesting. Still, these types of apps will help Microsoft boost the number of apps in its stores which is a physiological win for attracting new users.