CalcTastic Plus is a feature-rich calculator with years of refinement and exceptional user ratings. Choose from 12 different themes a configurable display and your choice of operation Algebraic or RPN.

CalcTastic Plus includes two fully-independent modes:

- A high-precision Scientific Calculator with Fractions Complex Numbers Physical Constants a Unit Converter Advanced Statistics History & Memory Registers and a full-online Help Section.

- A full-featured Programmers Calculator with a dedicated Binary Display support for Signed & Unsigned Integers (from 8-64 bits) as well as separate History & Memory Registers (viewable in binary octal decimal or hex).

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GENERAL
- Two Algebraic Modes with Editable Equations
- Two RPN Modes with up to 50 Stack Registers
- A Basic Mode with all the Essentials
- Calculation History with 50 Records
- Memory with 10 Registers
- 12 High-Quality Themes
- Copy and Paste
- Configurable Numeric Display (Decimal and Grouping)
- Easier to use than many other Calculator Apps
- Quicker than locating your Casio & HP Calculator (11C / 15C)

SCIENTIFIC
- High Internal Precision
- Rectangular and Polar form Complex Number Support
- Real Imaginary Argument Magnitude and Conjugate Functions
- Fractions and Fraction Calculations
- Convert Decimals to Fractions
- Degree Minute Second Support
- Standard Scientific Engineering and Fixed Decimal Notations
- Configurable Display Precision from 0 - 12 digits
- Table of 44 Physical Constants
- 289 Conversion Units across 18 Categories
- Trig Functions in Degrees Radians or Grads
- Hyperbolic Trig Functions
- Natural and Base-10 Logarithms
- Percent and Delta Percentage
- Remainder Absolute Ceiling and Floor operations

STATISTICAL
- Factorial
- Combinations and Permutations
- Random Number Generator
- 15 Single-Variable Statistics
- Quantity Min Max Range Sum Median
- Arithmetic Mean Geometric Mean Mean Squared
- Sum Squared Sum of Squares of Variance
- Sample Variance Sample Standard Deviation
- Population Variance Population Standard Deviation

PROGRAMMER
- Binary Octal Decimal and Hexadecimal
- History viewable in all Four Bases
- Convert between Bases
- Signed and Unsigned Integers (8 16 32 and 64-Bit)
- Cast between Integer Sizes
- Dedicated Binary-Bit Display (and Toggle) for all 64-Bits
- Bitwise Logic Operations AND OR XOR
- Bitwise Shift Operations
- Roll Left and Right
- Byte and Word Flipping
- Ones and Twos Complement - Native interpretation is Twos Complement
- Random Number Generator