The basic steps differ by phone and app
Adding someone to a group text depends on what you are using to send it. On iPhone, you open the conversation, tap the group name at the top, and select "Add Contact." On Android with the default Messages app, you tap the three dots, choose "Add participant," and pick the person. If you use WhatsApp, Messenger, or another third-party app, the steps are similar but the buttons are in different places — usually a settings icon or the group name itself.
The person you add will see all future messages but usually not the old ones. Some apps let you change this. WhatsApp shows new members the conversation history by default, while iMessage does not. If the group is on a platform like Telegram or Signal, the admin controls whether new members can see what was said before they joined.
One important difference: on iPhone, only the group creator or someone with permission can add people to iMessage groups. On Android and most third-party apps, any member can usually add someone new. Check your app's settings if you are not sure who has permission.
Key Takeaways
- iPhone iMessage groups require you to open the conversation, tap the group name, and select "Add Contact" from the menu.
- Android Messages app users tap the three-dot menu, choose "Add participant," and select the contact to add.
- WhatsApp, Messenger, and Signal have their own add-member buttons, usually found in the group settings or by tapping the group name.
- New members typically see only messages sent after they join, though some apps let you show them the full history.
- On iPhone, only the group creator or an admin can add people; on Android and most third-party apps, any member can add someone.
Adding someone on iPhone iMessage
Open the group conversation you want to add someone to. At the top of the screen, you will see the group name or a list of member names — tap that area. A menu will appear showing all current members and options at the bottom.
Look for "Add Contact" or a plus sign icon. Tap it, then search for the person by name or phone number. Once you select them, they are added when ready. The group will send a notification that a new person has joined, but the new member will not see any messages from before they were added.
If you do not see an "Add Contact" option, you may not have permission to add people to this group. Only the person who created the iMessage group or someone designated as an admin can add new members. Ask the group creator to add the person instead.
Adding someone on Android Messages
Open the group conversation and tap the three vertical dots (or three horizontal lines) in the top right corner. Select "Add participant" or "Add member" from the menu that appears. Your phone will show your contacts list — find and tap the person you want to add.
Unlike iPhone, Android's default Messages app usually lets any group member add someone new. The person will be added right away and will see all future messages. They will not see the conversation history unless your phone's Messages app has a setting to show it — this varies by phone manufacturer and Android version.
If you are using a different Android messaging app like Google Messages or Samsung Messages, the steps are similar but the menu location might change slightly. Look for a settings icon, group name, or three-dot menu at the top of the conversation.
Adding someone on WhatsApp
Open the group chat and tap the group name at the top of the screen. This opens the group info page. Scroll down until you see "Add participant" or a plus icon next to the member list. Tap it and select the contact you want to add from your phone's contacts.
WhatsApp shows new members the full conversation history by default, so they will see all previous messages in that group. If you want to prevent this, you can change the group settings before adding someone — look for "Who can see previous messages" or similar privacy options in the group info menu.
Only group admins can add people to WhatsApp groups. If you are not an admin, you will not see the "Add participant" option. Ask someone who is an admin to add the person for you.
Adding someone on Facebook Messenger
Open the group conversation. At the top, you will see the group name and a small icon (usually a circle with an "i" or a settings gear). Tap that icon to open group details. Look for "Add people" or a plus sign next to the member list. Tap it and search for the person by name.
In Messenger, any group member can add someone new unless the group creator has restricted this permission. The new member will see messages sent after they join but not the full history. Some versions of Messenger let you change this in the group settings.
If the group is very large or has specific privacy settings, you may see a message saying you cannot add people. This means the group creator has limited who can invite new members.
Adding someone on Signal or Telegram
Signal groups work similarly to WhatsApp. Tap the group name at the top, then look for "Add members" or a plus icon. Select the contact and they are added. Signal shows new members the full chat history by default.
Telegram groups have more control options. Tap the group name, then tap "Add members" or the plus icon. You can add multiple people at once. Telegram lets you choose whether new members see the chat history — this is set by the group admin in the group settings.
Both Signal and Telegram restrict who can add people based on group permissions. If you cannot add someone, the group admin may have turned off this permission for regular members.
What happens when someone is added
The new person receives a notification that they have been added to the group. On most platforms, they will see the group name and member list right away. They can start sending messages when ready.
The timing of when they see old messages depends on the app. iMessage does not show history to new members. WhatsApp, Messenger, Signal, and Telegram show the full history by default, though admins can change this. Android Messages usually shows only new messages unless your phone's settings are configured differently.
If you add someone by mistake, you can usually remove them from the group settings. The process is similar to adding — open the group info, find the member list, and look for a remove or delete option next to their name.
Frequently Asked Questions
Can I add someone to a group text if they do not have the same phone type as me?
Yes. If you are using iMessage on iPhone but want to add an Android user, the group will convert to a standard SMS or MMS group text. Everyone will still receive messages, but you will lose iMessage features like read receipts and typing indicators. If you use a third-party app like WhatsApp or Messenger, phone type does not matter at all.
What if the person I want to add is not in my contacts?
Most apps let you type in a phone number or email address directly instead of selecting from contacts. On iPhone iMessage, you can type the person's phone number or Apple ID. On WhatsApp and Messenger, you need their phone number or username. Check your app's add-member screen to see what information it accepts.
Can I add someone to a group without them knowing?
No. Every app sends a notification to the new member when they are added. They will see the group name, the member list, and know they have been added. You cannot add someone silently or without their awareness.
What if I cannot find the add-member option?
You may not have permission to add people. On iPhone iMessage, only the creator or an admin can add members. On group chats that have been restricted by the admin, regular members cannot add anyone. Ask the group creator or admin to add the person instead, or check your app's settings to see if permissions have been limited.
Will the new person see messages sent before they were added?
It depends on the app. iMessage does not show history to new members. WhatsApp, Messenger, Signal, and Telegram show the full conversation history by default, though the group admin can change this setting. Android Messages usually shows only new messages, but this varies by phone manufacturer.