Appium is an open-source automation framework for mobile app testing. It allows you to write and execute automated tests for native, hybrid, and mobile web applications on iOS and Android platforms. Appium provides a single API that works across different platforms and programming languages, making it easy to write tests in your preferred language.
Compared to other mobile testing frameworks like Espresso and XCUITest, Appium offers the advantage of cross-platform support, allowing you to write tests once and run them on multiple platforms. It also supports a wide range of programming languages and test frameworks, giving you flexibility in your test automation setup.
Appium is actively maintained and has a large community of contributors, ensuring regular updates and improvements. It is widely used in the industry and has extensive documentation and resources available for learning and troubleshooting.