How to set up Apple phones to send messages to each other for free?

1, it's not a free SMS, it's called iMessage. You need to set-information, turn on iMessage, and then you can send messages to each other in cellular data or WiFi environment. The criterion is that the send button turns blue, indicating iMessage.

2. If you feel useless, you can completely turn off these two functions in the settings and information in FaceTime.

3. First find the setting on our mobile desktop, and then click it, as shown below. Then click the information shown below. Then click to open the iMessage information switch, as shown in the figure below. Then return to the main interface of the mobile phone, and then click Info, as shown in the figure below.

4. If there is no SMS fee between Apple phones, only a small amount of traffic will be deducted. Sending method: Open the message and click the Edit Message button in the upper right corner of the screen to add the other party's mobile phone number to the receiver. At this point, if the other party is an Apple phone, you can see the words "new iMessage" at the top of the screen.

5. The wrong SMS sent by the mobile phone card is charged according to the package used, and has nothing to do with the package used. If the one on the iPhone is not called SMS, it is called iMessage. You need to open iMessage in Settings-Info. Then in the cellular data or WiFi environment, they can send each other. The standard is that the send button turns blue.