how many windows apps are there
'Microsoft by the numbers' 2015: 700k Windows Store Apps, 1.2bn Office users. Microsoft's newly updated 'by the Numbers' website shows progress in some areas while others stay the same. The 'Microsoft by the Numbers' website boasts nearly 700,000 Windows Store apps. Image: Microsoft. Microsoft has updated its 'by the Numbers' website, offering a snapshot of the company's progress on products, corporate responsibility, and employee diets.