There are a number of options available when it comes to licensing PowerApps. Like all of Microsoft's products, there are differing levels of license available, which will govern what functionality you can use or what connectors you have available to you. As of 1st October 2019, PowerApps licensing has undergone quite a radical change, and the following sections will explain what the key licensing aspects are.
Seeded apps
PowerApps is not included with the home versions of Office 365; however, it is included with most of the business licenses and all of the enterprise licenses. This means that the majority of Office 365 users will have the ability to create and use PowerApps to enhance, extend, and customize their Office applications. This is now what is known as seeded apps; that is, they are a part of the Office 365 and Dynamics 365 licenses.
Since they are a part of the Office 365 and Dynamics 365 packages, they do not cost you or your organization...