Comparison

Probability Lab vs Probability Distribution Lab

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

Head to head
About

Probability Lab

Explore probability distributions and statistical concepts with an interactive toolkit. Instantly compute functions and visualize distributions with real-time parameter adjustments. Ideal for students, educators, and learners of probability and statistics.

Highlights
  • 15+ continuous and discrete probability distributions
  • Compute PDF, PMF, CDF, inverse CDF
  • Interactive graphs with real-time parameter adjustment
  • Smooth, high-quality visualizations
  • Designed for students and educators
Features
Read full description

Probability Lab is an interactive toolkit for exploring probability distributions and statistical concepts. Choose from a wide range of continuous and discrete probability distributions, including the Normal, Binomial, Poisson, Beta, Gamma, Student's t, Chi-Square, and many more. Instantly compute probability density (PDF), cumulative distribution (CDF), inverse CDF (quantile), and other distribution functions with precise results. Visualize every distribution using smooth, interactive graphs. Adjust parameters in real time and watch the curve update instantly, making it easy to build intuition about how each parameter affects the distribution. Whether you're studying for a statistics course, teaching probability, or simply exploring mathematical concepts, Probability Lab provides a fast, intuitive, and beautiful way to understand probability distributions. **Features** • 15+ continuous and discrete probability distributions • Compute PDF, PMF, CDF, inverse CDF (quantile), and more • Interactive graphs with real-time parameter adjustment • Smooth, high-quality visualizations • Designed for students, educators, and anyone learning probability and statistics For questions or feedback, contact us anytime at chordstudio3572@outlook.com Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Probability Distribution Lab

Features
Read full description

Understand probability distributions from the first equation. Probability Distribution Lab helps you study derivations, transformations, and proofs of the mean and variance one line at a time, inside the app. No equation entry is required: tap to reveal the next step and its explanation, then record your understanding. FOLLOW THE REASONING Start with the initial equation and reveal each transformation in sequence. Mark difficult steps for review. Set familiar transformations to be skipped next time, and reveal skipped sections again when needed. DERIVE THE MEAN AND VARIANCE Study the reasoning behind the formulas, not only the final result. After a lesson, assess whether you can derive it without an explanation or understand it with a hint. CONNECT FORMULAS TO SHAPES AND USES Explore each distribution's graph, parameters, and concrete examples. Use the relationship map to study sums, limits, and transformations together with their conditions. REVISIT THE MATHEMATICS YOU NEED Refer to prerequisite concepts while studying a derivation. Save difficult steps and self-assessed understanding to organize your next review. Progress indicators reflect your own assessment; they do not guarantee exam results. FREE EDITION AND FULL ACCESS The free edition includes four distributions: Bernoulli, Binomial, Poisson, and Normal. Banner ads are shown in the free edition. Full Access is a one-time in-app purchase that unlocks all 15 distributions and their related derivations and proofs, and removes banner ads. There is no subscription. Restore purchases is available. Available in Japanese and English. No app account or login is required.

Screenshots

Probability Lab3 screens
Probability Distribution Lab4 screens

Verdict

The call

The clearest difference is ads: Probability Lab at none against Probability Distribution Lab's shown. Probability Distribution Lab's advantage is iOS requirement (17.0 vs 26.0). On price, 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

Both are free to download. Probability Lab sells 1 one-off in-app purchase and Probability Distribution Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 6 level
Probability Lab versus Probability Distribution Lab: the parameters behind the verdict, then further details
ParameterProbability LabProbability Distribution Lab
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size4 MB9 MB
Age rating4+4+
DeveloperJin ZhangAKIO FURUTSUKA

In-app purchases

1 purchases

Probability Lab

One-time1
  • Probability Lab Pro$9.99
1 purchases

Probability Distribution Lab

One-time1
  • Full Access$6.99

Questions

Is Probability Lab free?
Probability Lab is free to download, with in-app purchases available.
Is Probability Distribution Lab free?
Probability Distribution Lab is free to download, with in-app purchases available.
Do Probability Lab or Probability Distribution Lab have ads?
Probability Distribution Lab shows ads; Probability Lab does not.

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