I love Wolfram, I hate this app – Wolfram Mortgage Calculator Reference App Review

Wolfram makes some really useful tools - tools that are flexible and recognize real-world descriptions and values, and then give you useful information back. This app is NOT useful. It forces you to use specific values for input types (for instance, down payment is a percentage, and causes an error if you try to use a cash value)... and the app isnt smart enough to auto-fill values with local information (like tax rate). The app also doesn't allow you to take other pieces of information into account, like Mello Roos. Wolfram Mortgage would be less than useful if it were free (and with no retina support, it's pretty darn ugly too)... but at $1.99 it should be avoided at all costs. Check out "Mortgage Calculator™" instead (its the one with the gold-and-brown logo).
Review by Veraxus on Wolfram Mortgage Calculator Reference App.