https://testautomationu.applitools.com/appium-java-tutorial/

Introduction

What is Appium?

• Appium is an open-source tool for automating native, mobile web, and hybrid applications on iOS, mobile, Android, and Windows desktop platforms.

The second point is:** Appium is cross-platform**.

It allows you to write tests against multiple platforms such as iOS, Android, and Windows, using the same API.

So here we have the two main features of Appium:

1. It is open-source so you can start using it from today.
2. It's free and it's cross-platform, so you can use it with different types of applications for iOS and Android or Windows desktop.

You can also write Appium tests with different programming languages such as Java, Python, JavaScript, C#, and Ruby.

Introduction to Mobile testing

What are the types of mobile platforms?

We will start by talking about Android.

• Android
• iOS
• Windows Phone

Native vs Cross-Platform