Comparison

Stats & Probability Calculator vs Probability Lab

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

Head to head
About

Stats & Probability Calculator

Features
Read full description

Take the frustration out of statistics and probability calculations. Whether you’re a student tackling homework or a professional analyzing data, our all-in-one Statistics Calculator app gives you fast, accurate answers in seconds. No more tedious manual math or searching for formulas – with over 140 calculators across every area of stats, you’ll have the tool you need for any problem at your fingertips. Designed for ease of use and clarity, the app is organized into intuitive categories (Probability, Distributions, Descriptive Stats, and Inference/Test calculators). Simply pick a calculator, input your data or parameters, and get instant results. Complex calculations have never been this simple! Features & Highlights: Comprehensive Toolset: Covers basic to advanced statistics – from means, medians, and standard deviations up to complex regression analyses and hypothesis tests. (140+ calculators in one app!) - Probability & Paradoxes: Calculate probabilities and odds with ease. Solve classic puzzles like Bayes’ Theorem, the Birthday paradox, Monty Hall problem, Bertrand’s paradoxes, and more. Simulate random events with a Coin Flipper, Dice Roller, or even explore lottery odds and false-positive paradoxes. - Statistical Distributions: Work with all the important distributions. Compute probabilities, critical values, and percentiles for Normal, Binomial, Poisson, Exponential, Lognormal, - - - Uniform, and other distributions. Includes tools like a Central Limit Theorem simulator and Confidence Interval calculators for population parameters. - Descriptive Statistics: Instantly get summary stats for your data set. Enter your numbers to see the mean, median, mode, range, and standard deviation (population or sample). - - View 5-number summaries (min, Q1, median, Q3, max) and identify outliers with the IQR and outlier calculators. No data set is too large – let the app do the heavy lifting in moments. - Statistical Tests: Conduct hypothesis tests without tables or tedious calculations. Our app includes t-Tests (1-sample, 2-sample, paired), Chi-Square tests (goodness-of-fit, independence), z-tests, F-tests, and even one-way ANOVA. Just input your sample data or summary stats, and get test results with test-statistics and p-values instantly. - Regression Analysis: Go beyond basic stats – perform regressions and understand relationships in data. The app features Linear Regression (with RΒ² (R-squared) and residual analysis), as well as Polynomial and Exponential regression tools. Determine the line of best fit for your data points and make predictions without needing a complex PC program. - Charts & Plots: Visualize your data for better insights. Create histograms, box plots, dot plots, pie charts, and stem-and-leaf plots on the fly. For any data you input, the app can generate charts so you can see distribution shapes and outliers. Turn raw numbers into a visual story in one tap. - Intuitive UI & Fast Results: No learning curve required – the interface is clean and simple. Calculators are grouped by category, and each comes with clear input fields and labels. Enter your figures and get results immediately, with no internet connection needed. The app is lightweight and works offline, so you can study or work on statistics anywhere. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Probability Lab

Features
Read full description

Probability Lab is an interactive toolkit for exploring probability distributions and statistical concepts. Choose from a wide range of continuous and discrete probability distributions, including the Normal, Binomial, Poisson, Beta, Gamma, Student's t, Chi-Square, and many more. Instantly compute probability density (PDF), cumulative distribution (CDF), inverse CDF (quantile), and other distribution functions with precise results. Visualize every distribution using smooth, interactive graphs. Adjust parameters in real time and watch the curve update instantly, making it easy to build intuition about how each parameter affects the distribution. Whether you're studying for a statistics course, teaching probability, or simply exploring mathematical concepts, Probability Lab provides a fast, intuitive, and beautiful way to understand probability distributions. **Features** β€’ 15+ continuous and discrete probability distributions β€’ Compute PDF, PMF, CDF, inverse CDF (quantile), and more β€’ Interactive graphs with real-time parameter adjustment β€’ Smooth, high-quality visualizations β€’ Designed for students, educators, and anyone learning probability and statistics For questions or feedback, contact us anytime at chordstudio3572@outlook.com Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Stats & Probability Calculator4 screens
Probability Lab3 screens

Verdict

The call

The clearest difference is iOS requirement: Stats & Probability Calculator at 16.6 against Probability Lab's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Stats & Probability Calculator sells 3 in-app purchases, starting at $0.99 per month and Probability Lab sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference Β· 5 level
Stats & Probability Calculator versus Probability Lab: the parameters behind the verdict, then further details
ParameterStats & Probability CalculatorProbability Lab
PriceFreeFree
Update frequencyEvery 4 monthsβ€”
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, Mac β€” better
Requires iOS16.6 β€” better26.0
Further details β€” not scored
Size27 MB4 MB
Age rating4+4+
DeveloperVladislav ZhirnovJin Zhang

In-app purchases

3 purchases

Stats & Probability Calculator

Subscriptions2
  • Full version / monthly$0.991 Month
  • Full version / year$2.991 Year
One-time1
  • Remove ADS$3.99
1 purchases

Probability Lab

One-time1
  • Probability Lab Pro$9.99

Questions

Is Stats & Probability Calculator free?
Stats & Probability Calculator is free to download, with in-app purchases available.
Is Probability Lab free?
Probability Lab is free to download, with in-app purchases available.
Do Stats & Probability Calculator or Probability Lab have ads?
Neither Stats & Probability Calculator nor Probability Lab shows ads.

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