Comparison

Binomial Probability P(X=k) vs Discrete Probability

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

Head to head
About

Binomial Probability P(X=k)

Features
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Get your homework done instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and compute P(X=k) with probability tree, histogram, and distribution function. HOW IT WORKS Enter your values in the right fields and get started. You’ll get 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 you use - how many solutions you generate This helps us improve. We can’t identify you. COSTS Everything is free to use. 24/7 access to your solutions. All steps are always fully shown. If you need many solutions in a short time, different 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.

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
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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

Binomial Probability P(X=k)4 screens
Discrete Probability4 screens

Verdict

The call

The clearest difference is in-app purchases: Discrete Probability at none against Binomial Probability P(X=k)'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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Binomial Probability P(X=k) sells 8 one-off in-app purchases. Discrete Probability asks for nothing beyond the download.

UpkeepUpdate frequency

Binomial Probability P(X=k) ships an update every 3 weeks, Discrete Probability every 4 days. The most recent releases landed on October 2, 2026 and September 28, 2026 respectively.

Scorecard2 real differences · 7 level
Binomial Probability P(X=k) versus Discrete Probability: the parameters behind the verdict, then further details
ParameterBinomial Probability P(X=k)Discrete Probability
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better16.6
Further details — not scored
Size180 MB9 MB
Age rating4+4+
DeveloperGlindemann, Sennoun, Langer GbRYuri Morozov

In-app purchases

8 purchases

Binomial Probability P(X=k)

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +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
None

Discrete Probability

No in-app purchases

Questions

Is Binomial Probability P(X=k) free?
Binomial Probability P(X=k) is free to download, with in-app purchases available.
Is Discrete Probability free?
Discrete Probability is free to download, with no in-app purchases.
Do Binomial Probability P(X=k) or Discrete Probability have ads?
Neither Binomial Probability P(X=k) nor Discrete Probability shows ads.
Which is updated more often, Binomial Probability P(X=k) or Discrete Probability?
Binomial Probability P(X=k) ships an update every 3 weeks, and Discrete Probability every 4 days. Most recently, Binomial Probability P(X=k) was updated on October 2, 2026 and Discrete Probability on September 28, 2026.

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