Running Android apps on your PC device allows you to access the Android experience on a larger screen. They’re a great Android testing tool because they allow you to set up a virtual device on your Mac OS or Windows PC. This helps you not only see things more clearly, but also run your testing on the same device you do development on.
In addition to an Android emulator, you may want other mobile device testing tools. This could include iOS emulators or specific gaming emulators.