Does Unicom have software similar to Fetion?

A long time ago, the flight officer quit, and Unicom launched a letter. It is not clear whether it can be used now.

The function is exactly the same as Fetion, only for Unicom users, but now you can use the function of EasyLetter, which can basically replace Fetion and is better than Fetion. He can send free text messages to users of Triple Play for free.