The three major components of Power BI are, Power BI Desktop: It is used by the report analysts to access, transform, and measure data to build data visualizations. Available for free download and supports all windows operating systems. Power BI Service: It is one of the critical components of Power BI which allows users the access to interact with reports. It also allows users to create dashboards with a service functionality to edit and create new data visualizations. Power BI Mobile: Get personalized alerts and updates on your mobile. With Power BI mobile, you get access to reports on the fly.