Azure App Service is a platform-as-a-service (PaaS) offering that enables you to build, deploy, and scale web and mobile applications. It provides a set of tools and services for building, deploying, and scaling applications, as well as for integrating with other Azure services and on-premises resources.
Azure App Service Plan is the underlying infrastructure that Azure App Service runs on. It represents a set of compute resources that are used to host your web and mobile applications. You can create multiple Azure App Service plans within a Azure subscription and choose the appropriate plan for your application based on your requirements.
Azure App Service plans come in three tiers:
- Free: The Free tier is suitable for development and testing. It provides a limited set of compute resources and does not incur any charges.
- Shared: The Shared tier is suitable for small applications and prototypes. It provides a shared set of compute resources and is billed based on the number of hours that your application is running.
- Dedicated: The Dedicated tier is suitable for larger applications and production workloads. It provides a dedicated set of compute resources and is billed based on the number of hours that your application is running.
In summary, Azure App Service is a platform for building and deploying web and mobile applications, while Azure App Service Plan is the underlying infrastructure that Azure App Service runs on. You can choose the appropriate Azure App Service plan based on the size and scale of your application and your requirements.