The best, but could be better

As a scientific/graphing calculator, this is the best. The free version is amazing, and for $1 you can get rid of the ad banner.

Why not 5 stars? The unit converter displays its result up side down. The answer is correct, but it is very confusing. For example, 12 inches per foot is displayed as (1ft/in).

dBem1ss about EduCalc Pro, v8.2