# PocketStat vs Critical Value Calculator

The clearest difference is in-app purchases: Critical Value Calculator at none against PocketStat's 1. PocketStat's advantage is update cadence (every 3 months vs every 43 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PocketStat sells 1 one-off in-app purchase. Critical Value Calculator asks for nothing beyond the download.

PocketStat ships an update every 3 months, Critical Value Calculator every 43 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PocketStat | Critical Value Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pocketstat/id1095020560/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 43 months |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 25 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Mac |
| Age rating | 4+ | 4+ |
| Developer | [GLENN ROSEN](https://appshunter.io/developer/1077518822) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### PocketStat

[App page](https://appshunter.io/ios/app/pocketstat/id1095020560)

This tool helps you assess statistical claims in various academic and professional contexts. It offers calculators for common statistical tasks like determining sample size and performing t-tests. An optional premium upgrade unlocks advanced features for larger datasets.

**Highlights:** Assess statistical claims, Calculate sample size, Perform t-tests, Compute chi-square statistics, Estimate population mean, Premium advanced calculations

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Level | $1.99 | one-time |


### Critical Value Calculator

[App page](https://appshunter.io/ios/app/critical-value-calculator/id1612016227)

**In-app purchases:** none


## Frequently asked questions

### Is PocketStat free?

PocketStat is free to download, with in-app purchases available.

### Is Critical Value Calculator free?

Critical Value Calculator is free to download, with no in-app purchases.

### Do PocketStat or Critical Value Calculator have ads?

Neither PocketStat nor Critical Value Calculator shows ads.

### Which is updated more often, PocketStat or Critical Value Calculator?

PocketStat ships an update every 3 months, and Critical Value Calculator every 43 months. Most recently, PocketStat was updated on October 24, 2026 and Critical Value Calculator on October 7, 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.*