Discrete Probability vs Homework Helper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Read full descriptionHide 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
Homework Helper
Read full descriptionHide full description
Make math easier with our app. Simply scan a problem or type it in to get fast, clear solutions. Perfect for students, homework help, and everyday calculations. Main Features (Subscription Required): • Scan math problems using your camera • Step-by-step solutions and explanations • Supports algebra, arithmetic, equations, and more • Fast and accurate problem recognition • Clean and easy-to-use interface Why You’ll Love It: • Understand how problems are solved • Save time on homework and studying • Great for students of all levels • Learn math in a simple, visual way Subscription Details: • Weekly access: $6.99/week with a 3-day free trial • Yearly access: $39.99/year Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription anytime in your iTunes Account settings. Any unused portion of a free trial will be forfeited when a subscription is purchased. Privacy Policy: https://docs.google.com/document/d/1S5evwT2WvesoJpoOJYJx0nkS4NV7y6CaQ4pqkSqiCbE/edit?usp=sharing Terms of Use: https://docs.google.com/document/d/1bYnLbWEm7iN-M660On8jK8kuvKuPN9Rxnmgp9EIlj1o/edit?usp=sharing
Screenshots
Verdict
The clearest difference is in-app purchases: Discrete Probability at none against Homework Helper's 6. Discrete Probability also leads on device support (3 vs 1). On price, update cadence, ads 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. Homework Helper sells 5 in-app purchases, starting at $4.99 per 7 days. Discrete Probability asks for nothing beyond the download.
Discrete Probability ships an update every 4 days, Homework Helper every 5 days. The most recent releases landed on July 17, 2026 and June 21, 2026 respectively.
| Parameter | Discrete Probability | Homework Helper |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | Yuri Morozov | Serhiy Vishnyak |
In-app purchases
Discrete Probability
No in-app purchases
Homework Helper
- Smart Math Solver3 Days trial$4.997 Days
- Smart Math Solver3 Days trial$6.997 Days
- Smart Math Solver$9.997 Days
Show 2 moreShow fewer
- Smart Math Solver2 variants$19.991 Month
- Smart Math Solver$39.991 Year
Questions
Is Discrete Probability free?
Is Homework Helper free?
Do Discrete Probability or Homework Helper have ads?
Which is updated more often, Discrete Probability or Homework Helper?
Other comparisons















