Appium is an open-source automation framework that enables quality assurance teams to test mobile apps without altering their codebase. It uses the WebDriver protocol, allowing tests in multiple programming languages like Java, Python, or JavaScript. Its biggest advantage is cross-platform testing, which reduces duplication of effort between Android and iOS projects. In New York, USA’s tech-driven ecosystem, Appium’s flexibility is vital for enterprises maintaining mobile apps across platforms. It improves release efficiency, reduces manual testing time, and ensures app functionality is consistent on different devices, making it a cornerstone in modern mobile testing workflows.