RPN vs Statistics Calculator++
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RPN
This utility app functions as a reverse Polish notation calculator. Users input numbers and operations using a stack-based interface to perform calculations. It's designed for straightforward mathematical tasks.
- Reverse Polish Notation (RPN) input
- Stack-based operation
- Intuitive digit and operation buttons
- Clear result display
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Simple reverse polish notation calculator. To make an operation you tap the number using the digit buttons. When you want to insert the number into the stack you press the orange button "Enter". When you're done inserting the numbers just tap the operation to do it. The result will be displayed but not put again into stack. Example: 6+7 is 6 enter, 7 enter +
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!
Screenshots
Verdict
The clearest difference is review sentiment: Statistics Calculator++ at 63% against RPN's 0%. Statistics Calculator++ also leads on in-app purchases (none vs 1). RPN's advantage is price (Free vs $0.99). On update cadence, ads, monetization model and device support 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
RPN is free to download; Statistics Calculator++ costs $0.99 up front. RPN sells 1 one-off in-app purchase. Statistics Calculator++ asks for nothing beyond the download.
RPN ships an update monthly, Statistics Calculator++ every 3 weeks. The most recent releases landed on October 19, 2026 and October 29, 2026 respectively.
| Parameter | RPN | Statistics Calculator++ |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | — | 4.1 (309 ratings) — better |
| Positive reviews | 0.0% of reviews | 62.5% of reviews — better |
| Number of ratings | — | 309 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomas Stankiewicz Baldassarri | Dogahe |
Customer experience
RPN
Statistics Calculator++
Bugs and requests
RPN
Not enough reviews yet to summarise bugs or 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
In-app purchases
RPN
- Stack LCD$0.49
Statistics Calculator++
No in-app purchases
Questions
Is RPN free?
Is Statistics Calculator++ free?
Do RPN or Statistics Calculator++ have ads?
Which is updated more often, RPN or Statistics Calculator++?
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