Comparison

RPN vs Statistics Calculator++

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Reverse Polish Notation (RPN) input
  • Stack-based operation
  • Intuitive digit and operation buttons
  • Clear result display
Features
Read full description

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 +

About

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.

Highlights
  • 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
Features
Read full description

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

RPN3 screens
Statistics Calculator++4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

RPN ships an update monthly, Statistics Calculator++ every 3 weeks. The most recent releases landed on October 19, 2026 and October 29, 2026 respectively.

Scorecard3 real differences · 7 level
RPN versus Statistics Calculator++: the parameters behind the verdict, then further details
ParameterRPNStatistics Calculator++
PriceFree — better$0.99
Rating—4.1 (309 ratings) — better
Positive reviews0.0% of reviews62.5% of reviews — better
Number of ratings—309 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhoneiPhone, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size5 MB4 MB
Age rating4+4+
DeveloperTomas Stankiewicz BaldassarriDogahe

Customer experience

RPN

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Statistics Calculator++

All ratings309 ratings
Positive77.0%
Neutral3.2%
Negative19.7%
Written reviews64 reviews
Positive62.5%
Neutral3.1%
Negative34.4%

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
Show 1 more
  • 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
Show 5 more
  • 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

1 purchases

RPN

One-time1
  • Stack LCD$0.49
None

Statistics Calculator++

No in-app purchases

Questions

Is RPN free?
RPN is free to download, with in-app purchases available.
Is Statistics Calculator++ free?
Statistics Calculator++ costs $0.99, with no in-app purchases.
Do RPN or Statistics Calculator++ have ads?
Neither RPN nor Statistics Calculator++ shows ads.
Which is updated more often, RPN or Statistics Calculator++?
RPN ships an update monthly, and Statistics Calculator++ every 3 weeks. Most recently, RPN was updated on October 19, 2026 and Statistics Calculator++ on October 29, 2026.

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