Project Siena

Microsoft has released Project Siena app for windows .It allows you to create apps without any programming.

Main feature:

Conceptualize, validate and build your app ideas as easily as editing a document.
Connect to corporate and web data.
Compose rich interactive visuals to create custom, unique apps.
Add business logic and intelligence using the power of Excel-like expressions.
Use the app yourself, share with colleagues or with the world.
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