
Azure functions and App service, both are services from Microsoft. Both services can be used for developing and deploying different web applications in the cloud. Though both services have some similarities, they have some key differences between them as well.
Azure functions vs App service
Let’s point out a few key differences between Azure functions and Azure app service.
Azure functions | Azure App Service |
Azure Functions is nothing but a “Functions-as-a-service” that provides the opportunity to run a few lines of code or functions in the Azure environment to perform certain tasks. You can check out What Is Azure Functions for more details. | A fully managed platform to build and deploy your web apps that are developed using different frameworks like .NET, Java, Node.js, PHP, Python, Ruby, etc. |
It is called a “Functions-as-a-service,” and most importantly, it is Serverless. | It is basically a “Platform as a Service (Pass)”. |
Suitable for small functionalities. | Suitable for big functionalities or full-fledged web applications. |
Less expensive as compared to app service. You can check out Azure Function Pricing for more information. | More expensive as compared to Azure functions. |
Mainly, it is event-driven. | Can run continuously. |
Provides you with different triggers and bindings that can help you to easily integrate with different third-party APIs. | At the same time, the App service provides different interesting capabilities and features like continuous deployment, custom domains, etc. |
Azure functions or App service, which is better?
Whether you wish to go with Azure Functions or App service depends on your specific requirements. Suppose you need an event-driven application with a smaller functionality. In that case, you should go with Azure functions that will be less expensive for you, and if you wish to develop full-fledged web applications or a bigger functionality, then App service should be the right choice.
You may also like following the articles below
- How To Create Azure Functions In Visual Studio
- How To Monitor Azure Functions
- How To Trigger Azure Functions
- How To Find Azure Functions Run Time Version
- How To Create Azure Functions In Python
Conclusion
In this article, we have discussed Azure app service vs Azure functions and the key differences between App service and Azure functions. The choice is yours if you wish to go with App service or Azure functions based on your requirements. Thanks for reading this article !!!

I am Rajkishore, and I have over 14 years of experience in Microsoft Azure and AWS, with good experience in Azure Functions, Storage, Virtual Machine, Logic Apps, PowerShell Commands, CLI Commands, Machine Learning, AI, Azure Cognitive Services, DevOps, etc. Not only that, I do have good real-time experience in designing and developing cloud-native data integrations on Azure or AWS, etc. I hope you will learn from these practical Azure tutorials. Read more.