# Greatest Common Factor vs Intervals

The clearest difference is price: Intervals at Free against Greatest Common Factor's $0.99. Intervals also leads on update cadence (every 2 weeks vs every 38 months) and ratings volume (3 vs 1). Greatest Common Factor's advantage is iOS requirement (14.1 vs 17.5). On rating, ads, in-app purchases and device support there is nothing between them.

Intervals is free to download; Greatest Common Factor costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Greatest Common Factor against 5.0 for Intervals. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Greatest Common Factor ships an update every 38 months, Intervals every 2 weeks. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Greatest Common Factor | Intervals |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/greatest-common-factor/id1573121817/reviews) | [5.0 (3 ratings)](https://appshunter.io/ios/app/intervals-pro-timer/id6504121358/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 2 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 1 MB |
| Requires iOS | **14.1** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [H Valeur](https://appshunter.io/developer/621824042) | [Aydin Metel](https://appshunter.io/developer/1750982740) |

## 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


### Intervals

[App page](https://appshunter.io/ios/app/intervals-pro-timer/id6504121358)

This app helps you manage work and rest periods with customizable timers. It features a visual countdown, interval tracking, and audible alerts to keep you focused and balanced during workouts, study sessions, or tasks.

**Highlights:** Customizable work and rest intervals, Round and total time calculation, Visual circular timer, Pause, resume, and navigate controls, Audible chime alerts, Progress indicators

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Greatest Common Factor free?

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

### Is Intervals free?

Intervals is free to download, with no in-app purchases.

### Which has better reviews, Greatest Common Factor or Intervals?

Greatest Common Factor and Intervals are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.

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

Neither Greatest Common Factor nor Intervals shows ads.

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

Greatest Common Factor ships an update every 38 months, and Intervals every 2 weeks. Most recently, Greatest Common Factor was updated on September 30, 2026 and Intervals on October 6, 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.*