Is there a charge for SMS?

There are many kinds of short message software. I don't know which one you use. Generally speaking, there are three kinds of SMS charges: 1. Your phone operator still charges for sending text messages. This short message software is just an auxiliary optimization software to help you optimize the short message interface or increase the entertainment of the input content. 2. SMS operators no longer charge. This short message software is sent online through GPRS of mobile phone. Operators charge you for surfing the Internet, while SMS software providers don't charge you for sending SMS. 3. SMS operators no longer charge. This short message software is also sent online through GPRS. Operators charge you internet access fees, and SMS software providers charge you SMS fees. This kind of fee varies from software vendors, some are cheap and some are expensive, so you need to consult the software vendors yourself.