Comparison

Discrete Probability vs Probability Theory Foundations

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

Head to head
About

Discrete Probability

This app provides a comprehensive tool for learning and calculating discrete probability distributions. It includes formulas with derivations, visual tools like histograms, and descriptions of optimized computation methods. It covers general concepts and several specific distributions.

Highlights
  • User-friendly calculator
  • Formulas with derivations
  • Exportable formulas (image/LaTeX)
  • Optimized computation methods
  • Histograms and visual tools
  • General concepts and specific distributions
Read full description

Everything you need to learn and compute discrete distributions — formulas, derivations, and visual tools, all in one app. In Discrete Probability app, everything is in one place: • User-friendly calculator • Formulas with rigorous yet easy-to-follow derivations — exportable as images or LaTeX • Descriptions of optimized computation methods when they differ from the standard formulas • Histograms and other essential visual tools Covered in the first version: • General concepts with definitions and derivations / proofs • Binomial distribution • Geometric distribution • Negative Binomial distribution • Hypergeometric distribution • Poisson distribution We welcome your feedback — write to graphmath@aol.com

About

Probability Theory Foundations

Features
Read full description

Probability Theory Foundations is an independent study app for learners who want structured practice in core probability ideas, problem-solving habits, and exam-style reasoning. Built for students, self-learners, and anyone reviewing fundamentals, the app includes 160 questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. Every question includes an explanation so you can understand why an answer works, not just whether it was right. Features: - FSRS spaced-repetition intervals to help review at the right time - Weak-point heatmap to spot topics that need attention - Daily challenge for consistent practice - Mock exams for timed review - Offline practice with no login required - Explanations for every question Practice offline, no login required. Independent study app for Probability Theory Foundations practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.

Screenshots

Discrete Probability4 screens
Probability Theory Foundations4 screens

Verdict

The call

Discrete Probability and Probability Theory Foundations are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Discrete Probability versus Probability Theory Foundations: the parameters behind the verdict, then further details
ParameterDiscrete ProbabilityProbability Theory Foundations
PriceFreeFree
Rating5.0 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 4 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.615.1 — better
Further details — not scored
Size9 MB38 MB
Age rating4+4+
DeveloperYuri MorozovAFTW LLC

In-app purchases

None

Discrete Probability

No in-app purchases

None

Probability Theory Foundations

No in-app purchases

Questions

Is Discrete Probability free?
Discrete Probability is free to download, with no in-app purchases.
Is Probability Theory Foundations free?
Probability Theory Foundations is free to download, with no in-app purchases.
Do Discrete Probability or Probability Theory Foundations have ads?
Neither Discrete Probability nor Probability Theory Foundations shows ads.

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