The only calculator you will ever need

1-Calc is a revolutionary calculator for the Smartphone. Designed for simple, fast one or two handed entry of simple calculations, 1-Calc also includes many other features that make it the only calculator you will ever need.
Use the up/down buttons on the Smartphone to uncover other features:

Basic Functions
The most common calculator functions at your fingertips: +, -, x, ÷, +/-, 1/x, %, √, ³√, x², x³, full memory functions, x^y, !, Exp, 10^x, e^x.

Backspace to edit mistakes, brackets to frame your expressions correctly.

Also supports Algebraic, RPN & DAL calculator modes.

Scientific Functions
Full scientific calculator: sin, cos, tan, deg/rad/grad, PI, sin-1, cos-1, tan-1, sinh, cosh, tanh, log, ln, sinh-1, cosh-1, tanh-1, Dec->Deg, Deg->Dec, XY->R, Rθ->X, XY->θ, Rθ->Y, Random, nPr, nCr, Last Answer.

Useful constants for scientific calculations are also available as a group of buttons. You don't need to keep constants on a scrap of paper any more!

Currency Converter
1-Calc grabs the latest currency rates from the Internet so wherever you are, you always have the latest rates with you!

Unit Converter
A full unit converter that not only helps for the everyday conversions (e.g. km/miles, Fahrenheit/Celsius), but also for the unexpected (what's my shoe size in Europe?!?). Unit conversions include:
Distance, Temperature, Speed, Volume, Cooking, Computing, Area, Energy, Power, Mass, Force, Pressure & Clothing sizes.

Tip Calculator
Quickly work out who should pay when you're out with friends!

Memory Banks
1-Calc has 5 different memory banks to store your last calculation, not just 1 like most usual calculators. Plus it has copy / paste buttons to allow results to be copied to / from other Smartphone applications.

Base Converter
Quickly convert between binary, decimal, hexadecimal & octal.

Localization
English, Français, Deutsch, Español, Italiano, Portuguese, Catalan & Traditional Chinese.

More detailed information
Version update information
Help documentation
Skinning 1-Calc
1-Calc Expansion Pack
FAQ