Eleven | Calculator

The BEST everyday calculator app for iPhone and iPad.

• No equals button: Always automatically calculates the result in real-time while you type

• No confusion: You can always see AND edit your entire calculation

• Enter calculations of (almost) any length: The display and keypad automatically resize to fit

• Tap or slide across the display to edit your calculation at any position

• Unlimited Undo and Redo

• More readable: Uses color to distinguish between numbers and operators

• Intelligent buttons: Only those buttons light up which are relevant at any given time and cursor position

• Gorgeous analog-style design

• Four themes / skins included

• Extremely fast.

• Supports all basic operations: + - × ÷ √

• Supports advanced operations: ∛ x² x³

• Supports brackets ( )

• Supports results up to +/- 10³⁰⁰

• Long-tap the result to copy it to the clipboard

SCIENTIFIC CALCULATOR! (landscape orientation, available as In-App Purchase)

• Power function with fully editable exponent.
• Root function with fully editable degree.
• Logarithm function with fully editable base.
• Trigonometric functions: sin, cos, tan.
• Inverse trigonometric functions: asin, acos, atan.
• Hyperbolic functions: sinh, cosh, tanh.
• Inverse hyperbolic functions: asinh, acosh, atanh.
• Factorial function (integers only).
• Modulo (remainder) operator (mod).
• Smart constants: π, e.
• Smart random number generator.
• No mode switching -- all functions immediately available.