Welcome to ParanzaSoft
InterestThing
InterestThing is a financial calculator for Mac that lets you model, solve and track any cash flow problem — from simple interest calculations to complex loans, leases, and valuations.
Unlike template-based calculators, InterestThing lets you define the problem yourself as a timeline of events. Combine inflows, outflows, unknowns, rate changes and balance dates to model any financial structure — then solve for any unknown.
The combination of four interest types, three time interval methods and up to 20 day count conventions most likely covers the exact calculation specification you need — going beyond what spreadsheets and most other calculators can offer.
If you can define the problem, InterestThing can solve it.
APR Calculator
APR Calculator lets you calculate the annual percentage rate of charge for credit transactions using the methods used in the European Union and the United States.
The annual percentage rate of charge (APR) is a standardized measure for comparing loans.
Browse the APR Calculator Help
Balances
Balances is a time value of money calculator that lets you solve for any of the five TVM values.
iPhone and iPad app for iOS 16.0 or later.
