This has more calculators than you can imagine, and ads arent too intrusive.
I write spreadsheets so I can have all my calculators together. Now I dont have to.
And if you have a problem or question, feedback is amazingly fast and personal.
I finally moved to Pro, not because a few ads bothered me, but to support good software (with free version for try-before-you-buy) plus great support.
Ram99205 about EZ Financial Calculators