# calculatorX2 vs Greatest Common Factor

The clearest difference is iOS requirement: Greatest Common Factor at 14.1 against calculatorX2's 16.6. On price, update cadence, ads and in-app purchases there is nothing between them.

calculatorX2 costs $0.99 and Greatest Common Factor $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

calculatorX2 ships an update every 42 months, Greatest Common Factor every 38 months. The most recent releases landed on October 16, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | calculatorX2 | Greatest Common Factor |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/greatest-common-factor/id1573121817/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 38 months** |
| Monetization | — | Paid |
| Size | 12 MB | 1 MB |
| Requires iOS | 16.6 | **14.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Natalini](https://appshunter.io/developer/348380792) | [H Valeur](https://appshunter.io/developer/621824042) |

## What reviewers say

### calculatorX2

[App page](https://appshunter.io/ios/app/calculatorx2/id533156264)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is calculatorX2 free?

calculatorX2 costs $0.99, with no in-app purchases.

### Is Greatest Common Factor free?

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

### Do calculatorX2 or Greatest Common Factor have ads?

Neither calculatorX2 nor Greatest Common Factor shows ads.

### Which is updated more often, calculatorX2 or Greatest Common Factor?

calculatorX2 ships an update every 42 months, and Greatest Common Factor every 38 months. Most recently, calculatorX2 was updated on October 16, 2026 and Greatest Common Factor on September 30, 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.*