If you want to sign out of Google Photos on your iPhone, there are a few different ways to do it. The first way is to open the Photos app and tap on the three lines in the top left corner. From here, you can select Settings and then Sign Out. If you want to sign out of Google Photos on an Android phone, you can open the app and tap on the three lines in the top left corner. From here, you can select Settings and then Sign Out. You can also sign out of Google Photos by going to https://photos.google.com/settings/accounts?hl=en-US&authuser=0&next=/settings/accounts#signout on a computer and entering your Google account password. ..