Does texting cost money? What's the difference between texting from a county seat and texting from a single person?

Hello! Generally, mobile phone packages will give away a certain number of text messages. If the number of short messages exceeds this number, there will be a charge, which is generally 10 cent per message. Mass texting means sending the same message to many people at the same time. In the billing system, how many short messages are sent to how many people, that is, sending a short message in groups is not just a short message; Sending a text message is sending a text message to a person alone.