Power Apps per app plan allows individual users to run two applications and one portal for a specific business scenario in a specific environment based on the full capabilities of Power Apps. This plan provides an easy way for users to get started with Power Apps before broader scale adoption.
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After purchase, you allocate per app plans to environments. If you have multiple environments like test and production, you need to allocate per app plans capacity to all these environments appropriately.
In the Power Platform admin center, select Resources > Capacity in the left-side navigation pane. If your organization has purchased add-ons that includes per app plans, an Add-ons tile appears on the Capacity screen displaying summary information about the capacity add-ons that your organization has.
- DOCS: About Power Apps per app plans
https://docs.microsoft.com/en-us/power-platform/admin/about-powerapps-perapp
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