Do you need to pay the operator fee for the SMS sent by sogou SMS writing software?

If you open a short message, write it in sogou and send it as a regular message. Operators charge for short messages.

If you open the SMS, in addition to the text, you also add files such as pictures and audio in sogou. Operators only charge short message fees, except traffic fees, and other files are not charged.

If you don't use the file added by sogou when you write a short message, but use the function of the short message itself, it becomes a multimedia message, which is charged separately and is not cheap.