For Android users visit the Google Play store and search Hailo Driver. From there you can download and install the app. For iPhone (iOS) users visit https://new-install.hailocab.com/ and click Download. Note for iPhone users: If you have a phone running iOS9 you may be asked to trust the Hailo app before you can open it. If so follow these steps: 1) Go to you phone's Settings 2) Go to Profiles 3) Select Hailo 4) Select "Hailo Driver 2" 5) Tap Trust Once done you can now open the app.