Office 365 is the cloud service provided from Microsoft which has LOTS of features. These features can be used as subscription based. Few services are like Mail, Calendar, People. Yammer, OneDrive, Planner, Task, Delve, Word, Excel, PowerPoint, OneNote, Sway, PowerApps ETC. Apart from all these services, Microsoft also provides SHAREPOINT as a part of the services. This is known as SharePoint online. It has all the features of SharePoint like on PREMISE version. But Microsoft does not allow server side code in Office 365 SharePoint online.

Office 365 is the cloud service provided from Microsoft which has lots of features. These features can be used as subscription based. Few services are like Mail, Calendar, People. Yammer, OneDrive, Planner, Task, Delve, Word, Excel, PowerPoint, OneNote, Sway, PowerApps etc. Apart from all these services, Microsoft also provides SharePoint as a part of the services. This is known as SharePoint online. It has all the features of SharePoint like on premise version. But Microsoft does not allow server side code in Office 365 SharePoint online.