# Statistics Calculator Plus vs CST Exam Prep

The clearest difference is price: CST Exam Prep at Free against Statistics Calculator Plus's $2.99. CST Exam Prep also leads on update cadence (every 5 days vs every 23 months). Statistics Calculator Plus's advantage is in-app purchases (none vs 5) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

CST Exam Prep is free to download; Statistics Calculator Plus costs $2.99 up front. CST Exam Prep sells 5 in-app purchases, starting at $5.99 per 7 days. Statistics Calculator Plus asks for nothing beyond the download.

Statistics Calculator Plus ships an update every 23 months, CST Exam Prep every 5 days. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Statistics Calculator Plus | CST Exam Prep |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 23 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 1 MB | 47 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Ilia Chernikov](https://appshunter.io/developer/1818071113) |

## What reviewers say

### Statistics Calculator Plus

[App page](https://appshunter.io/ios/app/statistics-calculator-plus/id1632856633)

Instantly analyze data with this powerful calculator. It computes statistics, visualizes data with interactive histograms, and provides step-by-step explanations for every result. Ideal for students and educators working with numbers.

**Highlights:** Instant statistical calculations, Interactive histogram visualization, Step-by-step calculation breakdowns, Flexible data input methods, Random data generator, Built-in statistical reference

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

**In-app purchases:** none


### CST Exam Prep

[App page](https://appshunter.io/ios/app/cst-exam-prep/id6755035712)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $5.99 | per 7 days |
| Month | $9.99 | per month |
| 3 Month | $19.99 | per 3 months |
| 1 Month | $29.99 | per month |
| 3 Month | $59.99 | per 3 months |


## Frequently asked questions

### Is Statistics Calculator Plus free?

Statistics Calculator Plus costs $2.99, with no in-app purchases.

### Is CST Exam Prep free?

CST Exam Prep is free to download, with in-app purchases available.

### Do Statistics Calculator Plus or CST Exam Prep have ads?

CST Exam Prep shows ads; Statistics Calculator Plus does not.

### Which is updated more often, Statistics Calculator Plus or CST Exam Prep?

Statistics Calculator Plus ships an update every 23 months, and CST Exam Prep every 5 days. Most recently, Statistics Calculator Plus was updated on October 5, 2026 and CST Exam Prep on October 15, 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.*