# Sample Size Calculator App vs Stats AI

The clearest difference is price: Stats AI at Free against Sample Size Calculator App's $0.99. Stats AI also leads on update cadence (every 3 weeks vs every 8 months). Sample Size Calculator App's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 15.0). On ads and device support there is nothing between them.

Stats AI is free to download; Sample Size Calculator App costs $0.99 up front. Stats AI sells 2 in-app purchases, starting at $4.99 per 7 days. Sample Size Calculator App asks for nothing beyond the download.

Sample Size Calculator App ships an update every 8 months, Stats AI every 3 weeks. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Sample Size Calculator App | Stats AI |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 68 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LHC Apps](https://appshunter.io/developer/540050557) | [Kukuh Nomikusain](https://appshunter.io/developer/1739975777) |

## 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


### Stats AI

[App page](https://appshunter.io/ios/app/stats-ai-statistics-solver/id6757698039)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro (Weekly) | $4.99 | per 7 days |
| Pro (Yearly) | $29.99 | per year |


## Frequently asked questions

### Is Sample Size Calculator App free?

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

### Is Stats AI free?

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

### Do Sample Size Calculator App or Stats AI have ads?

Neither Sample Size Calculator App nor Stats AI shows ads.

### Which is updated more often, Sample Size Calculator App or Stats AI?

Sample Size Calculator App ships an update every 8 months, and Stats AI every 3 weeks. Most recently, Sample Size Calculator App was updated on September 22, 2026 and Stats AI on September 14, 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.*