text+ is the one i have for if/when i get too close to my 200 texts!
i believe it shows random numbers to the recipient, though (which in my case is always only hubby... so it doesn't matter!)
we tried a couple others and they weren't reliable (messaged didn't go through a lot of times) with text+ every one i sent went through quickly and he replies back to me (into text+ were just as quick!)