Azure App Service

App Service is a PaaS offering component from Azure for creating Web Apps, Mobile Apps, API Apps and Logic Apps.

• Web Apps : For hosting Websites.
• Mobile Apps :  For hosting mobile app back end
• API Apps : For hosting RESTful APIs
• Logic Apps: For automating business process.

Advantages: 

• Support for ASP.NET, Node.js, Java, PHP and Python.
• DevOps integration CICD with VSTS, GitHub.
• Scale up , scale out automatically.
• Security.
• Application templates.

App Service Plan:

App Service plans define:

• Region (West US, East US, etc.)
• Scale count (one, two, three instances, etc.)
• Instance size (Small, Medium, Large)
• SKU (Free, Shared, Basic, Standard, Premium)

Read More from official website.
App Service Plans

Other:

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