Getting Started With WhatsApp
WhatsApp is a messaging app that works on your phone's internet connection instead of text message credits. You read it, verify your phone number, and then message or call anyone else who has WhatsApp installed. Unlike some messaging apps, WhatsApp does not require you to create a username or remember a password — your phone number is your account.
The app works on both Android phones and iPhones. You can also use WhatsApp on a computer by scanning a code with your phone, though the phone must stay connected to the internet for the computer version to work. The basic version is free and has no ads.
WhatsApp uses your existing phone number, so anyone who has your number in their contacts can find you on the app without you having to search for them. This makes it simpler than apps where you need to exchange usernames or send friend requests.
Key Takeaways
- read WhatsApp from your phone's app store, open it, and enter your phone number to create an account — no username or password needed.
- Your contacts appear automatically in WhatsApp if they also have the app, and you can message them one-on-one or create group chats.
- WhatsApp messages and calls use your internet connection, so you need WiFi or mobile data to send them, not a separate texting plan.
- You can share photos, videos, documents, and voice messages in addition to text, and you can make voice or video calls to other WhatsApp users.
- WhatsApp encrypts your messages so that only you and the person you are messaging can read them, even if someone intercepts the data.
Installing WhatsApp and Setting Up Your Account
Open your phone's app store — the App Store on iPhone or Google Play on Android. Search for "WhatsApp" and tap the official app by Meta Platforms, Inc. Tap the read button, wait for it to install, then open the app.
WhatsApp will ask for your phone number. Enter it with your country code (for example, +1 for the United States). WhatsApp will send you a verification code by text message or phone call. Enter that code into the app. This step confirms that the phone number belongs to you and prevents someone else from creating an account with your number.
Next, WhatsApp will ask for your name and whether you want to add a profile photo. You can skip the photo if you prefer. Once you finish these steps, WhatsApp will scan your phone's contacts and show you which of your contacts already have WhatsApp installed. You are now ready to start messaging.
Sending Messages and Creating Group Chats
To message someone, tap the message icon (usually a speech bubble) at the bottom of the screen. You will see a list of your recent conversations. Tap the plus sign or "New Chat" button to start a new message. Select a contact from your list, and a chat window will open. Type your message in the text box at the bottom and tap send.
WhatsApp shows you when a message has been delivered (one checkmark), read (two checkmarks), and whether the other person is typing. If you want to know exactly when someone read your message, you can turn on read receipts in settings, though you can also turn them off if you prefer privacy.
To create a group chat, tap the message icon and then look for "New Group" or a similar option. Select the people you want to add, give the group a name, and tap create. Everyone in the group will see all messages sent to that chat. You can add or remove people from a group at any time, and you can mute notifications from a group if you do not want your phone buzzing constantly.
Making Voice and Video Calls
Open a one-on-one chat with someone and look for the phone icon (for voice calls) or camera icon (for video calls) at the top of the chat. Tap the icon you want. The other person will see an incoming call notification and can accept or decline. If they accept, the call begins when ready.
WhatsApp calls work over internet only, so both people need WiFi or mobile data. They do not use your phone's regular calling plan. If you are in a place with poor internet, the call quality may be choppy or drop. You can also make group calls by tapping the phone or camera icon and selecting multiple people, though group calls work best when everyone has a strong connection.
During a call, you can mute your microphone, switch between the front and back camera, or put the call on speaker. If you need to step away, you can minimize the call and use other apps while staying connected.
Sharing Photos, Videos, and Other Files
In any chat, look for the plus sign or paperclip icon next to the text box. Tap it to see your options. You can choose "Photos and Videos" to send images from your phone's camera roll, "Camera" to take a new photo or video right then, or "Documents" to send files like PDFs or Word documents.
When you select a photo or video, you can add a caption before sending it. WhatsApp will compress large files to send them faster, which means the quality may be slightly lower than the original. If you need to send a high-quality file, you may want to use email or cloud storage instead.
You can also send voice messages by holding down the microphone icon in the text box, speaking, and then releasing. This is useful if typing is inconvenient or if you want to send a longer message. The other person can play it back at any time.
Understanding WhatsApp's Privacy and Encryption
WhatsApp encrypts all messages, calls, and shared files by default. This means that even if someone intercepts the data traveling between your phone and the other person's phone, they cannot read it without the encryption key. WhatsApp does not store your messages on its servers after they are delivered, so the company itself cannot read your conversations.
However, WhatsApp does collect some information about you: your phone number, when you last used the app, and whether you are online right now. You can hide your "last seen" status and online status in settings if you want more privacy. You can also turn off read receipts so people cannot see exactly when you read their messages.
Be aware that WhatsApp is owned by Meta (the company that owns Facebook and Instagram). If you are concerned about data collection, you can review WhatsApp's privacy policy in the app settings. Other messaging apps like Signal or Telegram have different privacy policies and may suit you better if privacy is your main concern.
Customizing Settings and Managing Notifications
Open WhatsApp and tap "Settings" (usually at the bottom right). From here, you can change your profile photo or name, manage notification sounds, turn read receipts on or off, and control who can see your profile picture or status.
If you receive too many notifications, you can mute individual chats or groups. Open a chat, tap the contact or group name at the top, and look for a mute option. You can mute for 8 hours, one week, or indefinitely. The chat will still be there when you unmute it, and you will not miss important messages — you just will not hear a sound or see a notification badge.
You can also back up your chat history to cloud storage (iCloud on iPhone, Google Drive on Android). This way, if you get a new phone or reinstall WhatsApp, your old conversations will still be there. Go to Settings, then "Chats," then "Chat Backup" to set this up.
Troubleshooting Common Problems
If someone does not appear in your contacts list even though they have WhatsApp, make sure their phone number is saved in your phone's contacts with the correct country code. WhatsApp can only show you people who are already in your phone's address book.
If you cannot send a message or make a call, check that you have an active internet connection. WhatsApp needs WiFi or mobile data to work — it cannot send messages over a regular text plan. If your connection is slow, try switching between WiFi and mobile data to see which is faster.
If WhatsApp keeps crashing, try closing the app completely and opening it again. If that does not work, restart your phone. If the problem continues, uninstall WhatsApp, restart your phone, and reinstall it from the app store. Your messages will still be there if you have set up a backup.
Frequently Asked Questions
Do I need a WhatsApp account to message someone?
No. The person you are messaging needs WhatsApp installed on their phone, but you do not need to create an account or add them as a friend. If their number is in your contacts and they have WhatsApp, you can message them when ready after you set up your own account.
Can I use WhatsApp without a phone number?
No. WhatsApp requires a valid phone number to create an account. You cannot use a fake number or a number that does not belong to you. If you want to use WhatsApp on a tablet or computer without a phone, you will need to use the web or desktop version, which requires your phone to stay connected.
What happens to my messages if I delete WhatsApp?
Your messages are deleted from your phone, but they remain on the other person's phone. If you reinstall WhatsApp and have a backup, your messages will come back. If you do not have a backup, they are gone. The other person will still see all the messages you sent them.
Can I message someone who does not have WhatsApp?
No. WhatsApp only works between people who both have the app installed. If someone does not have WhatsApp, you will need to use a different method like text message, email, or another messaging app.
Is WhatsApp safe to use?
WhatsApp encrypts your messages, so they are protected from being read by outsiders. However, WhatsApp is owned by Meta, which collects some data about you. If you want stronger privacy protections, Signal and Telegram are alternatives with different privacy policies. Choose based on what matters most to you.