Probability-Distributions
Probability-Distributions is #41 in Education Paid in South Korea and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperMatthew Bognar
CategoryEducation
Price1.99 USD
Released
Rating★ 4.9 (193)
Version0.9.3
Age rating17+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)10k+ worldwide
Rating
4.9 ★
193 ratings
Measured
Best rank now
#41
Education PaidMeasured
Probability-Distributions on the App Store
App details
App ID
889106396
Publisher
Matthew Bognar
Minimum OS
iOS 14.0+
Content rating
17+
Languages
1
EN
Size
2 MB
Probability-Distributions downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| South Korea | EducationPaid | #41 |
Apps near Probability-Distributions on the chart
Education Paid, around #41.
Ratings
App Store, worldwide.
Rating
4.9 ★
193 ratings
Measured
Ratings
193
Measured
About Probability-Distributions
Compute probabilities, determine percentiles, and plot the probability density function for the normal (Gaussian), t, chi-square, F, exponential, gamma, beta, log-normal, Pareto, and Weibull distributions.
Compute probabilities, approximate percentiles, and plot the probability mass function for the binomial, geometric, hypergeometric, Poisson, and negative binomial distributions.
Compute probabilities, approximate percentiles, and plot the probability mass function for the binomial, geometric, hypergeometric, Poisson, and negative binomial distributions.
Latest updates
0.9.3
Small UI changes. Updated Boost numerical library.