# Sample Size Calculator App vs E.U.A

The clearest difference is price: E.U.A at Free against Sample Size Calculator App's $0.99. E.U.A also leads on update cadence (every 11 days vs every 8 months). Sample Size Calculator App's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 13.0). On ads and device support there is nothing between them.

E.U.A is free to download; Sample Size Calculator App costs $0.99 up front. E.U.A sells 2 one-off in-app purchases. Sample Size Calculator App asks for nothing beyond the download.

Sample Size Calculator App ships an update every 8 months, E.U.A every 11 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sample Size Calculator App | E.U.A |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/sample-size-calculator-app/id540050554/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 11 days** |
| Monetization | Paid | — |
| Size | 2 MB | 111 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [LHC Apps](https://appshunter.io/developer/540050557) | [SIRIUS SM](https://appshunter.io/developer/1809745753) |

## What reviewers say

### Sample Size Calculator App

[App page](https://appshunter.io/ios/app/sample-size-calculator-app/id540050554)

This app calculates sample sizes for statistical studies. It dynamically adjusts the sample size based on user inputs for margin of error, confidence level, population size, and proportion.

**Highlights:** Dynamic sample size calculation, Adjustable margin of error, Configurable confidence level, Population size input, Proportion input

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

**In-app purchases:** none


### E.U.A

[App page](https://appshunter.io/ios/app/eua/id6754610503)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flutter Course | $999.99 | one-time |
| Course | $999.99 | one-time |


## Frequently asked questions

### Is Sample Size Calculator App free?

Sample Size Calculator App costs $0.99, with no in-app purchases.

### Is E.U.A free?

E.U.A is free to download, with in-app purchases available.

### Do Sample Size Calculator App or E.U.A have ads?

Neither Sample Size Calculator App nor E.U.A shows ads.

### Which is updated more often, Sample Size Calculator App or E.U.A?

Sample Size Calculator App ships an update every 8 months, and E.U.A every 11 days. Most recently, Sample Size Calculator App was updated on September 22, 2026 and E.U.A on September 21, 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.*