Type your name and tap “OK” to complete setup. If you previously used WhatsApp on your number, tap “Restore” to restore your chat history. Enter your phone number and tap “OK” to register it. WhatsApp requires your phone number to send and receive messages. Tap “Agree and Continue” to move forward. Once downloaded, open WhatsApp and agree to the Terms of Service. Open the Play Store app on your Android phone and search for “WhatsApp Messenger”. Installing WhatsApp on your Android phone is quick and easy: Step 1: Open Google Play Store The WhatsApp install process is straightforward, only requiring some basic set-up steps once the app is downloaded. To begin using WhatsApp, users must first download the app from the Apple App Store or Google Play Store depending on whether they have an iPhone or Android device. WhatsApp is a popular cross-platform mobile messaging app which allows users to send text messages, images, video, and audio media messages to other users. A Step-by-Step Guide to WhatsApp installation on Android, iPhone, PC and Mac Here is a complete guide to downloading and installing WhatsApp on Android, iPhone, PC and Mac. WhatsApp is one of the most popular messaging apps, available across platforms.