Not Working. Needs an update. No customer service – Number Math Review

App is called Number Math full Version iPhone 6s OS version 9.2.1 First off your contact App support page is broken. Unable to contact App Developer. The full version is worse than the free. The app freezes when I press the house... Icon. That's the icon whenever I start any set of math questions it locks up the continue arrow and the options to answer the question and continue. The Main menu has words all over the screen blocking the buttons to start a math query. The free version worked better. I uninstalled the both versions and re-installed the the full version and still it's broken. Fix this app. Waste of money. No contact support.
Review by MidnightGammer on Number Math.