How to send text messages for free using Apple iMessage

There are conditions for using Apple iMessage to send text messages for free:

Both mobile phones must be iPhone devices;

Both mobile phones must have the iMessage function turned on and Activation;

To successfully send and receive, the mobile phones of both parties must be in a valid network. Due to network reasons, iMessage messages sometimes have a certain delay.

The setting method to turn on iMessage function is as follows:

Click Settings;

Click Message;

Turn on the switch behind iMessage and activate it. available.

After turning on the switch behind iMessage