Which free SMS platform works well?

The naive appearance of the landlord is quite elegant in my boyhood. Free? Where there is so much free in today's world, Fetion can add friends for free, and with the development of WeChat, Fetion has gradually disappeared in people's lives. 139 mailboxes are free, but there are only dozens, in order to promote the benefits of their products. If you want to be free, someone must pay the price. Let's get down to earth. If it's not sent by mobile phone, if it's sent for business purposes, Haoyu Information Communication and 238 are good choices.