The PlayBook has an awesome calculator. I’m sure this isn’t the most interesting app to review but, I prefer FULL coverage rather than partial. You never know, there may be someone out there who does a lot of computation and having a pretty good calculator on their tablet could be a definite plus for them. The one for the PlayBook has a unit converter and a tip calculator, along with the basic calculation options. I, for one, am glad it has so many features…enjoy.