Which software doesn't charge for texting?

Fetion: First of all, the other party is a customer of China Mobile, because Fetion is limited to mobile-to-mobile; Then, you need to add each other as friends in the mobile phone client. Fetion will let you choose whether to use the other party's flight signal to add or add a mobile phone number. After adding, the other party will receive a confirmation message from Fetion, and the other party will reply "Yes" directly. Logging in to the Fetion client and then sending a short message is a mobile phone traffic, but if you directly reply to the Fetion message when you are not logged in, it is 0. 1 yuan per message, and if the user who has not opened Fetion directly replies to your Fetion, it is also 0. 1 yuan per message. I suggest that you use Fetion to send short messages in the right way. The other party does not reply directly but sends short messages to your mobile phone normally, which can be included in the monthly free short messages, if you still don't understand.