Comparison

Statistics Calculator++ vs Twixl Viewer Classic

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

Head to head
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!

About

Twixl Viewer Classic

Features
Read full description

The Twixl Viewer Classic allows you to preview interactive and enriched content created on your computer with Adobe InDesign® and the Twixl Publisher plug-in. After creating a publication, a designer can push the content to this app from the Twixl Publisher plug-in. How it works: When you have created an interactive publication using InDesign and the Twixl Publisher plug-in, the "Preview on device" option in the plug-in allows you to generate a preview of your publication, and send it to an iPad connected to the local network. Open this "Twixl Viewer" app on your device, then enter the IP address listed in the top right corner of the app window in the Preview Settings of the Twixl Publisher Palette.

Screenshots

Statistics Calculator++4 screens
Twixl Viewer Classic3 screens

Verdict

The call

The clearest difference is price: Twixl Viewer Classic at Free against Statistics Calculator++'s $0.99. On update cadence, ads, in-app purchases 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

Twixl Viewer Classic is free to download; Statistics Calculator++ costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 14, 2026 and October 4, 2026 respectively.

Scorecard1 real difference · 9 level
Statistics Calculator++ versus Twixl Viewer Classic: the parameters behind the verdict, then further details
ParameterStatistics Calculator++Twixl Viewer Classic
Price$0.99Free — better
Rating4.1 (308 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings308 — better—
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size4 MB32 MB
Age rating4+4+
DeveloperDogaheTwixl media

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
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

Twixl Viewer Classic

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Statistics Calculator++

No in-app purchases

None

Twixl Viewer Classic

No in-app purchases

Questions

Is Statistics Calculator++ free?
Statistics Calculator++ costs $0.99, with no in-app purchases.
Is Twixl Viewer Classic free?
Twixl Viewer Classic is free to download, with no in-app purchases.
Do Statistics Calculator++ or Twixl Viewer Classic have ads?
Neither Statistics Calculator++ nor Twixl Viewer Classic shows ads.
Which is updated more often, Statistics Calculator++ or Twixl Viewer Classic?
Statistics Calculator++ ships an update every 3 weeks, and Twixl Viewer Classic every 3 weeks. Most recently, Statistics Calculator++ was updated on October 14, 2026 and Twixl Viewer Classic on October 4, 2026.

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