“God App vs Advanced Calculator: Which is the better mobile tool for unit conversions and formula calculations?”

Um, someone tried a “god” app “for everything”.But somehow I think in vain about what I want and need to do on my mobile from the suggested options. The only exception is a calculator with unit conversions and substituting into (predefined) formulas. But these are all functions that the “advanced calculator” application handles for me (and I’ve used it once or twice over the years, probably due to non-metric unit conversions).