The PREACT Pillow targets the root cause of motion sickness, so you can stay comfortable and productive without side effects. This app is intended for use with the PREACT Pillow device sold separately. The app uses Bluetooth connection to send vibration cues to your PREACT Pillow device, alerting you of upcoming vehicle motion. This fixes the mismatch between expectation and reality, helping with motion sickness and productivity. Try out the technology today and reclaim your ride!