# Simple Stat vs Stats & Probability Calculator

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.

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.

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.

## The numbers

| Metric | Simple Stat | Stats & Probability Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/simple-stat-calculator-for-statistics-students/id358670046/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 1 MB | 27 MB |
| Requires iOS | **8.0** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Enrico Susatyo](https://appshunter.io/developer/358670049) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## What reviewers say

### Simple Stat

[App page](https://appshunter.io/ios/app/simple-stat-calculator-for-statistics-students/id358670046)

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:** macOS Compatibility

**In-app purchases:** none


### Stats & Probability Calculator

[App page](https://appshunter.io/ios/app/stats-and-probability-calculator/id6748586083)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version / monthly | $0.99 | per month |
| Full version / year | $2.99 | per year |
| Remove ADS | $3.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*