it's juz an 3 party sms software that give u another interface.
u can customize alot on the UI and it provides those bubble chat like what u see in iphone.
ur msg will be circle with a bubble and can easily separate between u and the other ppl msg.

it's more manageable and offer another great function.
it will pop up ur incoming msg to ur home screen and allow u to reply in a quick manner.
this will save all the taps to open up the sms. u could straight away reply on the pop up.