From Joaquin Grech:
Financial Calculator is a simple, yet powerful and accurate intuitive calculator. Video tutorial: http://www.echoboom.com/financialcalculator/. Features: Time value of money. Growing annuities. Calculates N, Interest, Present Value, PMT and Future Value of money. Bond valuation. Cash flow analysis in an intuitive interface. Analyzes investments: Internal Rate of Return (IRR) and Net Present Value (NPV). Amortization and Loans. Support for Canadian mortgages. RPN support. Near instantaneous calculations. Note: Please, write to my address under the 'help' section when you believe you found a bug. I do read every email and fix them as soon as possible. I also try to implement all feature requests. As for the bad reviews: Please, read the FAQ on the help section if you believe numbers are wrong. It's usually people missing something on the settings when using the financial calculator. All emails have been answered and explained and there has not been a wrong calculation since version 1.1. Please if your email was replied and solved, change the review since it makes it look bad for everybody else.