Install the mobile app This option allows you top add Observatory on Principle 10 to the home screen of your device. Android iOS AndroidInstall the mobile app in your Android device.1Select the option “Add Principle 10 Observatory to the main screen”.2Confirm by selecting “Add”.3Once the icon has been added to the main screen, select the application.iOSInstall the mobile app in your iOS device.1Click the “Share” button located at the center bottom of the screen.2Choose “Add to Home Screen” from the share options.3Click the “Add” button located at the top right of the screen.4Now you can visit Observatory on Principle 10 from your home page.