Been using this for a long time, and its actually the best messaging app that i can recommend, but its just happen that this time i tried to send messages from a certain person and they cannot recieve any message from me though it says in the app that the message is already sent. Then i try to use the original message installed to my device then it actually works. They can recieve my message time to time. It's just so dissapointing at the same time since this is the app that I prefer to use.