Statistics Calculator++ vs Standard Deviation
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Statistics Calculator++
Perform advanced statistical analysis, including regression and probability distributions, with ease. Visualize data through plots and tables, and save or import datasets from spreadsheets. Offers a wide range of calculations beyond core statistics.
- Data entry and analysis table
- Box and whisker plots and histograms
- Linear, logarithmic, exponential, power, quadratic regressions
- Save and import data from Excel/Numbers
- Normal, t, Chi-Squared, F, Binomial, Poisson distributions
- Confidence intervals and hypothesis tests
- Fraction manipulation, angle conversions, solvers
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Simplify your statistics with Statistics Calculator++ Perform powerful statistical analysis without needing a manual. Enter your data easily using "Add X," "Add Y," and "Add Z" buttons, and let Statistics Calculator++ handle the rest. Analyze results in a clear table, including sum, mean, standard deviation, quartiles, and more. Visualize your data with box and whisker plots and histograms. Powerful regression analysis: Choose from linear, logarithmic, exponential, power, and quadratic regressions. The intuitive interface simplifies selecting models and calculating predictions for x and y values. View residuals, residual sum of squares, and how the regression model fits your data in a graph. Save and import data with ease: Store multiple data lists and use them in calculations effortlessly. Import data directly from Microsoft Excel or Apple Numbers. Plus, your data is always saved within the app, so you never lose it. More than just statistics: Probability distributions: Normal, Student's t, Chi-Squared, F, Binomial, Poisson, Geometric, Beta, and Gamma. Confidence intervals and hypothesis tests: Step-by-step explanations for common statistical tests. Advanced calculations: Fraction manipulation, angle conversions, permutation/combination, LCM/GCD, prime factorization, quadratic solver, system of linear equations solver, rectangular/polar conversions, dice rolling. Statistics Calculator++ is a powerful and user-friendly tool for: Students Scientists Engineers Anyone who needs statistical analysis Download Statistics Calculator++ today and experience the simplicity of powerful statistics!
Standard Deviation
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SD calculator is an iOS application developed for the calculation of standard deviation problems. It includes entering data values and selecting the type of standard deviation i.e. sample or population. Features of standard deviation calculator Design The design of this application is unique and its style and theme are attractive. This app is designed to top all the other apps out there in the design department. Input field The input field is easy to use to enter data and get the result. Simply, add the comma-separated values and choose the type of standard deviation. Multiple options There are multiple options available in this application as you can get the mean, sample standard deviation, population standard deviation, deviation (difference of data values from the mean), square of deviation, sample variance, and population variance. Results The step-by-step solution will be provided just after hitting the calculate button for the sample and population data. This will help you to ease up the lengthy and time-consuming calculation in a fraction of a second. How to use a standard deviation calculator? This application is easy to use, but just in case you need a guide, here it is. • First of all, enter the comma-separated values into the input box. • Select the type of the standard deviation i.e. sample or population. • Press the calculate button. • The step-by-step result will show just after pressing the calculate button • Hit the reset button to enter new data.
Screenshots
Verdict
The clearest difference is price: Standard Deviation at Free against Statistics Calculator++'s $0.99. Standard Deviation also leads on device support (4 vs 2) and iOS requirement (13.0 vs 15.0). Statistics Calculator++'s advantage is update cadence (every 3 weeks vs every 2 months). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Standard Deviation is free to download; Statistics Calculator++ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Statistics Calculator++ ships an update every 3 weeks, Standard Deviation every 2 months. The most recent releases landed on September 24, 2026 and September 12, 2026 respectively.
| Parameter | Statistics Calculator++ | Standard Deviation |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.1 (309 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 309 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Dogahe | Ahmad Sattar |
Bugs and requests
Statistics Calculator++
Reported bugs
6 issues- App freezes after brief use
- Statistics section won't open
- Incompatibility with iOS 7
- Random number generator produces predetermined sequences
- Landscape/portrait mode switching issues
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- Missing advertised features (nCr function)
Requested features
10 requests- User manual or tutorial documentation
- Ability to input custom quantiles and critical values
- Support for Z-score input in normal distribution
- Streamlined data clearing process
- Quadratic and advanced regression options
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- Graphing for all input/output scenarios
- Direct proportion input without requiring trial counts
- Improved random number generator with proper seeding
- Plotting of regression models
- Two-sided interval calculations for alpha values
Standard Deviation
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Statistics Calculator++
No in-app purchases
Standard Deviation
No in-app purchases
Questions
Is Statistics Calculator++ free?
Is Standard Deviation free?
Do Statistics Calculator++ or Standard Deviation have ads?
Which is updated more often, Statistics Calculator++ or Standard Deviation?
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