Statistics Calculator vs Discrete Probability
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Statistics Calculator
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Get your homework done instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your data (optionally with probabilities) and calculate mean / expected value, (empirical) variance, and standard deviation. HOW IT WORKS Enter your values in the appropriate fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
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 in-app purchases: Discrete Probability at none against Statistics Calculator's 8. Discrete Probability also leads on update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Statistics Calculator sells 8 one-off in-app purchases. Discrete Probability asks for nothing beyond the download.
Statistics Calculator ships an update every 3 weeks, Discrete Probability every 4 days. Both last shipped on October 24, 2026.
| Parameter | Statistics Calculator | Discrete Probability |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Number of ratings | — | 4 — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 179 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Yuri Morozov |
In-app purchases
Statistics Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Lifetime Access$1.99
- Remove Ads$1.99
Discrete Probability
No in-app purchases
Questions
Is Statistics Calculator free?
Is Discrete Probability free?
Do Statistics Calculator or Discrete Probability have ads?
Which is updated more often, Statistics Calculator or Discrete Probability?
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