Genetic calculator

[paulh]

Learning punnett squares allows you to do your own calculations

This is true. And then you don't need an internet connection. However, only a masochist does a three or more gene pair genetics problem with a Punnett square. A calculator is much faster for that. Or if no internet connection is available, the forkline method is better than a Punnett square. See https://en.wikipedia.org/wiki/Punnett_square