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! Quickly convert between the following currencies:
  • United States Dollars
  • Argentine Peso
  • Australian Dollar
  • Bahamian Dollar
  • Bulgarian Leva
  • Canadian Dollar
  • Chilean Peso
  • Chinese Renminbi
  • Colombian Peso
  • Croatian Kuna
  • Czech Republic Koruna
  • Cypriot Pound
  • Danish Krona
  • East Carribean Dollar
  • Euro Fiji Dollar
  • African Franc
  • Pacific Franc
  • Ghanaian Cedi
  • Honduran Lempira
  • Hong Kong Dollar
  • Hungarian Forint
  • Icelandic Krona
  • Indian Rupee
  • Indonesian Rupiah
  • Israeli Shekel
  • Jamaican Dollar
  • Lithuanian Litas
  • Latvia Lat
  • Malaysian Ringgit Maltese Lira
  • Mexican Peso
  • Moroccan Dirham
  • Myanmar Kyat
  • Neth. Antilles Guilder
  • New Zealand Dollar
  • Norwegian Krona
  • Pakistan Rupee
  • Panamanian Balboa
  • Peruvian Sol
  • Philippine Peso
  • Polish Zloty
  • Romanian Leu
  • Russian Rouble
  • Singapore Dollar Slovak Koruna
  • Slovenian Tolar
  • South African Rand
  • South Korean Won
  • Sri Lankan Rupee
  • Swedish Krona
  • Swiss Franc
  • Taiwanese Dollar
  • Thai Baht
  • Trinidad Dollar
  • Tunisian Dinar
  • Turkish Lira
  • UK Pound Sterling
  • Venezuelan Bolivar
  • Old Euro Currencies
• 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.
• Compatibility: 1-Calc is fully localized into Français, Deutsch, Español, Italiano, Catalan, Portuguese & Traditional Chinese.
• Skinning: Skinning (changing how the calculator looks) is an integral feature of 1-Calc. Click here for details instructions on how to skin 1-Calc to make it look unique!