# Greatest Common Factor vs Cycle Timers

The clearest difference is update cadence: Cycle Timers at every 4 days against Greatest Common Factor's every 38 months. Greatest Common Factor's advantage is iOS requirement (14.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Greatest Common Factor ships an update every 38 months, Cycle Timers every 4 days. The most recent releases landed on September 30, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Greatest Common Factor | Cycle Timers |
| --- | --- | --- |
| 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 38 months | **Every 4 days** |
| Monetization | Paid | — |
| Size | 1 MB | 2 MB |
| Requires iOS | **14.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Izotz Cristobal Mota](https://appshunter.io/developer/1889865541) |

## 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


### Cycle Timers

[App page](https://appshunter.io/ios/app/cycle-timers/id6796827400)

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

**In-app purchases:** none


## Frequently asked questions

### Is Greatest Common Factor free?

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

### Is Cycle Timers free?

Cycle Timers costs $0.99, with no in-app purchases.

### Do Greatest Common Factor or Cycle Timers have ads?

Neither Greatest Common Factor nor Cycle Timers shows ads.

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

Greatest Common Factor ships an update every 38 months, and Cycle Timers every 4 days. Most recently, Greatest Common Factor was updated on September 30, 2026 and Cycle Timers on October 2, 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.*