Comparison

Simple Stat vs Stats & Probability Calculator

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

Head to head
About

Simple Stat

This app provides essential statistical tests for first-year university students. It offers a user-friendly interface for common calculations like Z-tests and T-tests. Designed for ease of use in introductory statistics courses.

Highlights
  • Z-test for mean
  • Z-test for proportion
  • T-test
  • Two sample t-test
  • Paired t-test
  • Easy to use interface
Features
Read full description

Simple Stat is an application that can perform statistics tests which are commonly used in first year university statistics course. Simple Stat is very easy to use, and suits first year statistics students very well. The statistics tests that are included in Simple Stat are: - Z-test for mean - Z-test for proportion - T-test - Two sample t-test - Paired t-test

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 R² (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/

Screenshots

Simple Stat4 screens
Stats & Probability Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Simple Stat at none against Stats & Probability Calculator's 3. Simple Stat also leads on iOS requirement (8.0 vs 16.6). Stats & Probability Calculator's advantage is update cadence (every 4 months vs every 12 months). On price, 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. Stats & Probability Calculator sells 3 in-app purchases, starting at $0.99 per month. Simple Stat asks for nothing beyond the download.

UpkeepUpdate frequency

Simple Stat ships an update every 12 months, Stats & Probability Calculator every 4 months. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Stat versus Stats & Probability Calculator: the parameters behind the verdict, then further details
ParameterSimple StatStats & Probability Calculator
PriceFreeFree
Rating2.5 (4 ratings) — better—
Positive reviews55.6% of reviews—
Number of ratings4 — better—
Update frequencyEvery 12 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS8.0 — better16.6
Further details — not scored
Size1 MB27 MB
Age rating4+4+
DeveloperEnrico SusatyoVladislav Zhirnov

In-app purchases

None

Simple Stat

No 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

Questions

Is Simple Stat free?
Simple Stat is free to download, with no in-app purchases.
Is Stats & Probability Calculator free?
Stats & Probability Calculator is free to download, with in-app purchases available.
Do Simple Stat or Stats & Probability Calculator have ads?
Neither Simple Stat nor Stats & Probability Calculator shows ads.
Which is updated more often, Simple Stat or Stats & Probability Calculator?
Simple Stat ships an update every 12 months, and Stats & Probability Calculator every 4 months. Most recently, Simple Stat was updated on November 1, 2026 and Stats & Probability Calculator on October 28, 2026.

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