Is there a charge for texting by touch?

Hello, there is no charge for this. Imessage is sent by traffic. Hello, the mobile phone needs traffic to receive it, but you accept it by touch, and the mobile phone doesn't. The two are irrelevant. If the mobile phone receives it, you use your mobile phone to connect to wifi, and your traffic settings will not be deducted-WiFi is turned on.

Hope to adopt