How to Install on iOS To install the Booktower PWA: Open Booktower Mini on your phone in Safari Click the "Share" button. On the latest version of Safari, you need to click the three dots next to the URL then click "Share." On older versions of Safari, the share button is located at the bottom center of the screen and looks like a box with an arrow. Scroll down, click "View More," then click "Add to Home Screen" Now you can use the app!