Download and install WhatsApp from the App Store or Google Play Store
Open the app
Accept the terms and conditions
Enter your phone number
Verify your phone number with the SMS code
Allow required permissions if prompted
Enter your name and add a profile photo if desired
Sync your contacts
Tap a contact to start a chat
Type a message and send it
Use the attachment icon to send photos, videos, documents, or contacts
Tap the phone icon to make a voice call
Tap the video icon to make a video call
Use the microphone icon to send voice messages
Create a group chat from the menu
Use the search bar to find chats or messages
Change settings from the menu
Update your profile, privacy, and notification preferences
Block or report unwanted contacts if needed
Log out only by deleting the app or switching accounts on a new device