Simply go to either the App Store on your Apple Phone or to the Google Play Store on your Android phone.Find the otoTune app and download it onto your phone.Once you have downloaded the otoTune app, follow the following prompts:1. Login if you already have an account, or Sign up with your email2. Create a password3. Enter your first name4. Enter your last name5. Enter your birthday6. Enter your Gender7. Enter your Address