Worked for a while – Loan,Mortgage ,Tip Calculator Review

I have had this app for quit some time and it always worked and I was very happy with it. Today I opened it and there is a huge pop up asking me to consider purchasing some other apps. The close button is covered by the pop up and I can't close the popup so now this app is useless to me. I have Iphone 6 Plus and IOS 10.
Review by JSWHB on Loan,Mortgage ,Tip Calculator.