# Greatest Common Factor vs RefoMeasure

The clearest difference is price: RefoMeasure at Free against Greatest Common Factor's $0.99. RefoMeasure also leads on update cadence (weekly vs every 38 months). Greatest Common Factor's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

RefoMeasure is free to download; Greatest Common Factor costs $0.99 up front. RefoMeasure sells 1 one-off in-app purchase. Greatest Common Factor asks for nothing beyond the download.

Greatest Common Factor ships an update every 38 months, RefoMeasure weekly. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Greatest Common Factor | RefoMeasure |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greatest-common-factor/id1573121817/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Weekly** |
| Monetization | Paid | — |
| Size | 1 MB | 89 MB |
| Requires iOS | **14.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [福州市鼓楼区荣荣森网络科技有限公司](https://appshunter.io/developer/1801364611) |

## What reviewers say

### Greatest Common Factor

[App page](https://appshunter.io/ios/app/greatest-common-factor/id1573121817)

This app helps users find the factors of numbers, calculate the Greatest Common Factor (GCF) for two or more numbers, and simplify fractions. It's a useful tool for understanding number theory concepts and performing fraction simplification.

**Highlights:** Find factors of a number, Calculate GCF of two or more numbers, Simplify fractions, Understand number theory concepts, Fraction simplification tool

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

**In-app purchases:** none


### RefoMeasure

[App page](https://appshunter.io/ios/app/refomeasure-renovation-calc/id6815105799)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime PRO (Permanent Version) | $4.99 | one-time |


## Frequently asked questions

### Is Greatest Common Factor free?

Greatest Common Factor costs $0.99, with no in-app purchases.

### Is RefoMeasure free?

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

### Do Greatest Common Factor or RefoMeasure have ads?

Neither Greatest Common Factor nor RefoMeasure shows ads.

### Which is updated more often, Greatest Common Factor or RefoMeasure?

Greatest Common Factor ships an update every 38 months, and RefoMeasure weekly. Most recently, Greatest Common Factor was updated on November 3, 2026 and RefoMeasure on November 10, 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.*