# Sample Size Calculator App vs EFI Connect App

The clearest difference is price: EFI Connect App at Free against Sample Size Calculator App's $0.99. EFI Connect App also leads on update cadence (every 5 days vs every 8 months). Sample Size Calculator App's advantage is iOS requirement (8.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

EFI Connect App is free to download; Sample Size Calculator App costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sample Size Calculator App ships an update every 8 months, EFI Connect App every 5 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sample Size Calculator App | EFI Connect App |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | Paid | — |
| Size | 2 MB | 32 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [LHC Apps](https://appshunter.io/developer/540050557) | [The Endometriosis foundation of India](https://appshunter.io/developer/1867110712) |

## 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


### EFI Connect App

[App page](https://appshunter.io/ios/app/efi-connect-app/id6757458223)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sample Size Calculator App free?

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

### Is EFI Connect App free?

EFI Connect App is free to download, with no in-app purchases.

### Do Sample Size Calculator App or EFI Connect App have ads?

Neither Sample Size Calculator App nor EFI Connect App shows ads.

### Which is updated more often, Sample Size Calculator App or EFI Connect App?

Sample Size Calculator App ships an update every 8 months, and EFI Connect App every 5 days. Most recently, Sample Size Calculator App was updated on October 23, 2026 and EFI Connect App on October 25, 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.*