Comparison

Turing Machine Simulator vs Distributions

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

Head to head
About

Turing Machine Simulator

This application simulates Turing Machines, a fundamental concept in computer science and mathematics for analyzing algorithm computability. It offers a digital alternative to paper-and-pencil simulations, allowing users to write, execute, and analyze programs step-by-step with adjustable execution speeds.

Highlights
  • Turing Machine simulation
  • Program execution and analysis
  • Step-by-step execution
  • Adjustable execution speed
  • Export/import programs via email
  • Includes example programs
Features
Read full description

This app is a Turing Machine Simulator. Students of computer science and maths are probably familar with Turing Machines, because the Turing Machine is one of the important models when analyzing if mathematical problems or algorithms are computable. Usually dealing with Turing machines requires paper and pencil for simulating the program execution. This app can help by providing several ways to execute Turing programs and analyze it in an easy and comfortable way. You can write new programs for the Turing Machine, execute them and analyze the execution even step by step. It's also possible to change the speed of the execution. It's possible to export and import Turing programs using email. The app comes with some example Turing programs to play with.

About

Distributions

Features
Read full description

Drag the curve. Shade a region. Watch probability respond. Distributions is a modern statistics study tool for students, educators, and anyone who wants to feel how probability distributions behave—not just memorize formulas. EXPLORE 41 DISTRIBUTIONS Browse discrete and continuous families with interactive PDF/PMF and CDF charts, live parameter sliders, descriptive statistics, examples, and random sampling. Search, favorites, recents, and side-by-side comparison keep the catalog usable on iPhone and iPad. TOUCH THE MATH Drag parameters on the chart and see the shape move. Turn on Probability mode to shade continuous regions or select discrete values and read the probability instantly. Typeset formulas stay linked to the live parameters. LEARN DEEPER Practice with Guess-the-Distribution quizzes, walk a relationship map between families, look up a searchable glossary, and check live z, t, and χ² critical values—all offline. ON-DEVICE AI (APPLE INTELLIGENCE) Ask the Distribution Advisor to suggest a distribution from a scenario, tap Explain for contextual teaching prompts, and optionally mix AI-generated quiz questions. AI output is labeled and advisory; exact probabilities and quantiles always come from the app’s calculator. When Apple Intelligence is unavailable, Explain and quizzes use built-in content and the Advisor tells you why it’s unavailable—everything else works the same. No accounts. No tracking. No third-party AI services. FIT MY DATA Paste or import a dataset, estimate candidate distributions, rank goodness of fit, inspect histogram and Q–Q overlays, and export reports. ONE-TIME PURCHASE Distributions is a paid app. One purchase includes all 41 distributions, interactive charts, calculators, Fit My Data, saved parameter sets, every quiz mode, exports, and unlimited on-device Advisor use. No subscriptions. No in-app purchases. No ads. Privacy-first by design: your exploration stays on your device.

Screenshots

Turing Machine Simulator4 screens
Distributions4 screens

Verdict

The call

The clearest difference is update cadence: Distributions at every 7 months against Turing Machine Simulator's every 16 months. Turing Machine Simulator's advantage is price ($2.99 vs $4.99) and iOS requirement (15.0 vs 26.0). On 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

Turing Machine Simulator costs $2.99 and Distributions $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Turing Machine Simulator ships an update every 16 months, Distributions every 7 months. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Turing Machine Simulator versus Distributions: the parameters behind the verdict, then further details
ParameterTuring Machine SimulatorDistributions
Price$2.99 — better$4.99
Rating4.8 (4 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 16 monthsEvery 7 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size2 MB15 MB
Age rating4+4+
DeveloperAlexander ClaussJoao Frasco

In-app purchases

None

Turing Machine Simulator

No in-app purchases

None

Distributions

No in-app purchases

Questions

Is Turing Machine Simulator free?
Turing Machine Simulator costs $2.99, with no in-app purchases.
Is Distributions free?
Distributions costs $4.99, with no in-app purchases.
Do Turing Machine Simulator or Distributions have ads?
Neither Turing Machine Simulator nor Distributions shows ads.
Which is updated more often, Turing Machine Simulator or Distributions?
Turing Machine Simulator ships an update every 16 months, and Distributions every 7 months. Most recently, Turing Machine Simulator was updated on October 7, 2026 and Distributions on October 12, 2026.

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