Comparison

Galton Board vs Binomial Probability P(X=k)

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

Head to head
About

Galton Board

Explore the principles of probability and statistics with a digital simulation of the Galton Board. Observe how balls distribute into bins, demonstrating the central limit theorem visually.

Highlights
  • Digital Galton Board simulation
  • Demonstrates central limit theorem
  • Visualizes ball distribution
  • Interactive physics simulation
  • Educational tool for statistics
Features
Read full description

This app is a digital replica of the Galton Board, a device designed to demonstrate the central limit theorem. 

Just put your phone upright, you can watch how the balls fall, hit pegs, take different paths, and eventually fall into different bins at the bottom. 

In the end, you will find the bins in the middle hold more balls than those on the sides.

About

Binomial Probability P(X=k)

Features
Read full description

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.

Screenshots

Galton Board1 screens
Binomial Probability P(X=k)4 screens

Verdict

The call

The clearest difference is in-app purchases: Galton Board at none against Binomial Probability P(X=k)'s 8. Galton Board also leads on iOS requirement (8.0 vs 15.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Galton Board ships an update every 6 weeks, Binomial Probability P(X=k) every 3 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
Galton Board versus Binomial Probability P(X=k): the parameters behind the verdict, then further details
ParameterGalton BoardBinomial Probability P(X=k)
PriceFreeFree
Rating3.8 (11 ratings) — better—
Positive reviews25.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size43 MB180 MB
Age rating4+4+
Developer乃君 黄Glindemann, Sennoun, Langer GbR

In-app purchases

None

Galton Board

No 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

Questions

Is Galton Board free?
Galton Board is free to download, with no in-app purchases.
Is Binomial Probability P(X=k) free?
Binomial Probability P(X=k) is free to download, with in-app purchases available.
Do Galton Board or Binomial Probability P(X=k) have ads?
Neither Galton Board nor Binomial Probability P(X=k) shows ads.
Which is updated more often, Galton Board or Binomial Probability P(X=k)?
Galton Board ships an update every 6 weeks, and Binomial Probability P(X=k) every 3 weeks. Most recently, Galton Board was updated on October 24, 2026 and Binomial Probability P(X=k) on October 24, 2026.

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