SolveIT! is a fast, easy-to-use collection of 33 financial calculators. It includes amortization, loan calculator, balloon, compound/simple interest, bond value and yields, present and future value, annuity, IRR, NPV, budget, and net worth. It offers adjustable cash flows and rates and supports extra and skipped payments or deposits; Rule-of-78s; Canadian type loans; APR disclosure statements, evaluation of loan acceleration scenarios. Check it out to find many more features.