The iPhone has the added benefit of supporting iMessage, which does allow you to add someone to an existing group text, but only up to a certain number of people.

Group texts are a great way to keep in touch with friends and family. We explain how to send group texts on Android.

You can create a contact list, called a group, in the Contacts app on an Android phone to send messages to. This can be useful if you frequently want to create a text message to the same group of ...

Here is how you can add text to all your photos on any device using the default applications available on them.

You can add new contacts to WhatsApp manually from the Chats tab or you can scan someone's QR code within the app.