How to Send Text to All Contacts on an iPhone

1. Download and install the Group Texter application to your iPhone from the App Store. Group Texter is a free application, supported by advertising. Group Texter allows you to arrange contacts by group, including the ability to add your entire contacts list to a group.
2. Tap the Group Texter icon to open the program.
3. Add a new group by tapping the top-right '+' button on Group Texter's main screen. For a group that will have your entire contact list, you might call it 'Everyone.'
4. Add contacts to the 'Everyone' group from your existing contacts list. There is no limit to the number of contacts in each group, so you can add your entire contacts list.
5. Return to Group Texter's home screen and tap the 'Everyone' group to send a text. Then, simply enter your message and hit 'Send' to deliver the same text message to everyone in your contacts list.