A free loan payment and comparison calculator for Windows.

Calculate total after interest added for any sum with a single click. 99¢

Compare 135 loans at once with Loan Spread Calculator Pro

Calendar of irregular menstrual cycles and ovulations

Get to know how many seconds have elapsed since your birth!

Cycle calendar that determines up to 10.5 infertile days in the female cycle

TimePuter is a time/date calculator with many related features

Waves & Oscillations Simulators (21+) from the PVL

Discounted Cash Flow Analysis of 14 cash flow series with 5 discount rates.

Practice punctuation and capitalization with this arcade grammar game.