Probability(Math Drills) vs Discrete Probability
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Probability(Math Drills)
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You can learn Probability offline. Since the question generation and the correctness judgment of the answer are automatically performed, you can work on the drill learning as many times as you like. You can also see tips and answers. Score high in Challenge Mode to improve your rank!!
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.
- User-friendly calculator
- Formulas with derivations
- Exportable formulas (image/LaTeX)
- Optimized computation methods
- Histograms and visual tools
- General concepts and specific distributions
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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
Screenshots
Verdict
The clearest difference is update cadence: Discrete Probability at every 4 days against Probability(Math Drills)'s every 3 weeks. Probability(Math Drills)'s advantage is iOS requirement (12.0 vs 16.6). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Probability(Math Drills) ships an update every 3 weeks, Discrete Probability every 4 days. The most recent releases landed on August 4, 2026 and July 17, 2026 respectively.
| Parameter | Probability(Math Drills) | Discrete Probability |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 28 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 郷 田村 | Yuri Morozov |
In-app purchases
Probability(Math Drills)
No in-app purchases
Discrete Probability
No in-app purchases
Questions
Is Probability(Math Drills) free?
Is Discrete Probability free?
Do Probability(Math Drills) or Discrete Probability have ads?
Which is updated more often, Probability(Math Drills) or Discrete Probability?
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