Device Changer

Device Changer is a QA and testing tool for Android apps, built for teams that need to test across many device configurations without buying and maintaining a large physical device lab. It works by simulating Android device profiles, including build fingerprint and device identifiers, on rooted Android hardware using Magisk and LSPosed, letting a single physical device present itself as many different device and OS combinations for testing purposes. It's used by QA engineers running compatibility and regression testing across Android device fragmentation, mobile testing teams looking to expand device coverage without expanding their hardware inventory, and developers reproducing device-specific bugs tied to a particular manufacturer or OS version.

Device Changer runs on rooted Android devices and is built specifically for testing and QA workflows.