The free app can be downloaded in the App Store (iPhone, iPad) or in the Play Store (Android).
The sensor is connected directly through the HackMotion app. Open the app, create or sign in your account and follow the instructions. The app will ask you to turn the sensor when necessary - at this point, press the button on the sensor and follow further instructions.
Make sure your phone or tablet has Bluetooth and network connection enabled.
Each sensor has a single license, which can be activated for a single HackMotion account. When you create a new account, the HackMotion app will ask you to connect to your sensor. Once you do, your license will be activated.
You will need a network connection to activate your license.