My company InfoStrat has been working with Dynamics 365 for over 13 years since version 3.0 of Dynamics CRM was released. For more than half of our customers, we have been using Dynamics for line of business solutions which are not the typical sales, customer service and marketing applications that make up customer relationship management (CRM).
Microsoft offers a subscription for these users who do not need sales, customer service or support. This subscription is called Power Apps, and provides the same user interface, platform and development tools as are used for the CRM apps.
Power Apps offers significant savings -- the U.S. list price is $40/user/month compared to $95/user/month for each of the sales and customer service apps or $115/user/month for the Customer Engagement bundle which includes sales, customer service, project service and field service.
Another way that customers can save is through combining the subscription types so that users are only paying for the services that they need based on their role.
The Power Apps subscription is not a lower powered subscription for for occasional or read-only users like the Team Member subscription insofar as Power Apps gives users full access to custom entities as well as some shared entities.
The Dynamics licensing guide provides full details on what each subscription type provides.
The InfoStrat Cost Calculator helps you estimate your subscription costs.
See also:
Microsoft Dynamics 365: So Many Apps, So Little Time
Understanding Dynamics 365 and Office 365 Admin Roles
Dynamics 365 and xRM: What Comes Next?
Ten Things You Need to Know About Microsoft Software Licensing