Open the App Store: Launch the App Store on your iPhone. Search for PHPUB: Use the search bar at the bottom of the screen to look for “PHPUB.” Download the App: Find the PHPUB app in the search results and tap the download button. You might be asked to enter your Apple ID password or use Face/Touch ID. Install and Launch: Once the download is complete, the app will automatically install. Find the PHPUB app icon on your home screen and tap it to open.