Here we have gathered the most common questions about Imessage.
Hopefully the answer to your question is here.
Common FAQ for Imessage
What devices can I use imessage on?
You can use imessage on any Apple devices, such as iPhones, iPads, and Mac computers.
Is imessage free to use?
Yes, imessage is completely free to use as long as you have a reliable internet connection.
Can I send messages to people who don't have the service?
No, imessage can only be used to send messages to other imessage users. If the recipient does not have the service, the message will be sent as a regular text message.