Step 2: When your app is installed successfully, enable 'Developer Mode' on your device before using this app to fake your location. Step 1: First, download the Fly GPS app on your android device from the google play store. Follow these simple steps mentioned below to use it. Pokemon GO lovers admire the app's usage making it one of the most demanding GPS spoofing apps. The Fly GPS in Pokemon exceeds others in its simplicity and versatility. How to use Fly GPS in Pokémon Go ( For Android)