Some sites feature a bingo app, while others don’t. You can find out whether an app is necessary by visiting the relevant bingo site through your smartphone or tablet. If an app is required, the operator will likely place an Android and or iOS emblem on their homepage. You select the respective emblem to learn the download instructions for your given operating system. If you’re using an iPhone, for example, you’ll be instructed to visit the App Store, which should offer the bingo app that you need.