Keen Calculator & Converter

Keen Calculator is an everyday calculator and a library of more than 400 calculators and converters in one app. It is free, has no ads, needs no account and collects nothing. EVERYDAY CALCULATOR • A clear keypad with a tape that keeps your working in view 400+ CALCULATORS IN 14 CATEGORIES • Pay: overtime, raises, hourly to salary, time cards • Finance: mortgage, loans, compound interest, savings, retirement • Business: margin, markup, discount, sales tax, VAT, break-even • Math, geometry and statistics: percentages, fractions, area, volume, standard deviation • Health and fitness: BMI, calories, running pace • Date and time: age, days between dates, business days • Home, auto, school, tech and everyday: concrete, paint, fuel cost, GPA, tip and bill split ANSWERS AS YOU TYPE • Results update while you type, no Calculate button • Presets, breakdown bars and payment schedules • Worked…