United StatesCalcTastic is a high-precision, feature-rich scientific calculator with years of refinement and thousands of satisfied users. Choose from 5 different themes, a configurable display and your choice of operation, Algebraic or RPN.
CalcTastic is FREE but comes with many great features including a Unit Converter, Fractions, Complex Numbers, Advanced Statistics, History & Memory Registers and a full-online Help Section.
If you find CalcTastic Scientific Calculator useful, consider the PLUS version ($3 USD). The PLUS version also includes Polar-Form Complex Numbers, 7 Additional Themes and a Full-Featured Programmers Calculator.
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GENERAL
- High Internal Precision
- 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
- 5 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
- Rectangular Form Complex Number Support
- Real, Imaginary, Magnitude, Argument 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 different 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
been using this app for nearly 10 years now. somehow since the layout update that enables us to edit the formulas, during lengthy calculations, (even simple multiplication and additions) there is input latency now. It doesn't feel as smooth and responsive as before.
I've tried a ton of calculator apps, this is my favorite in terms of ease of use, simple condiguration, and clean presentation. Super happy with the free version, but I'm buying the upgrade just to support the dev
A truly excellent expression-based calculator, which is far superior to apps which mimic more primitive physical devices.
Tested lots of calculator apps this one is the best.
Started using this on all my devices. Really useful. Thanks devs.
This is the BEST calculator. Period. I only wish the developer can update the icon to a better looking one that's all. 🙏
Very good Calculator. No unnecesary permission requirements. Scientific Retro theme is just perfect. Thank you.
Android's best all-around calculator just got better! Equations can now be edited, and results are calculated in real-time. Plus, lots of other improvements.
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