The Power Apps per app plan is designed to help organizations solve for one business scenario at a time, which may involve a combination of individual apps. Each “per app” license provides an individual user with rights to one app (canvas and/or model-driven) or one Power Apps Portal, within a single environment. A single user might be covered by multiple “per app” licenses to allow the user to use multiple apps, without requiring a per-user license. In other words, the “per app” license is stackable.
An important part of this feature simplification is that we will no longer require any standalone plans for maker or admin capabilities. Previously admins required a PowerApps P2 license for certain management operations; this will no longer be the case.