About Power of Interest

Power of Interest is the product website for Amortization Pro, a Windows desktop application developed and supported by ERICH Incorporated.

Software developed for practical loan schedules

Amortization Pro creates detailed repayment schedules with extra payments, changing rates, balloon payoff dates, annual totals, charts, saving, retrieval, CSV export, and printable reports. The software is designed for users who need more flexibility than a basic online loan calculator.

Company information

Try before purchasing

Use the free online amortization calculator or install the Windows evaluation. The evaluation includes five unrestricted schedule builds before registration.