Using the free service, you can publish your Power BI Desktop file to the cloud. Once uploaded, you can access your reports in the browser or on your mobile device using the Power BI app. You can even build new reports on the published dataset. It is also possible to schedule the data refresh to make sure you reports are always up-to-date. This free service does not support the sharing and collaboration features. In other words, it’s for personal use only and you cannot share your work with your co-workers. Functionality like Apps, App workspaces etc. are not supported.