# TOOL plus (Pro) ¶ vs Greatest Common Factor

The clearest difference is price: Greatest Common Factor at $0.99 against TOOL plus (Pro) ¶'s $14.99. TOOL plus (Pro) ¶'s advantage is update cadence (every 2 days vs every 38 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

TOOL plus (Pro) ¶ costs $14.99 and Greatest Common Factor $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TOOL plus (Pro) ¶ ships an update every 2 days, Greatest Common Factor every 38 months. The most recent releases landed on August 6, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | TOOL plus (Pro) ¶ | Greatest Common Factor |
| --- | --- | --- |
| Price | $14.99 | **$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 2 days** | Every 38 months |
| Monetization | — | Paid |
| Size | 111 MB | 1 MB |
| Requires iOS | 15.6 | **14.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Han-Chung Lin](https://appshunter.io/developer/881528252) | [H Valeur](https://appshunter.io/developer/621824042) |

## What reviewers say

### TOOL plus (Pro) ¶

[App page](https://appshunter.io/ios/app/tool-plus-pro/id972381990)

**Features:** macOS Compatibility

**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 TOOL plus (Pro) ¶ free?

TOOL plus (Pro) ¶ costs $14.99, with no in-app purchases.

### Is Greatest Common Factor free?

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

### Do TOOL plus (Pro) ¶ or Greatest Common Factor have ads?

Neither TOOL plus (Pro) ¶ nor Greatest Common Factor shows ads.

### Which is updated more often, TOOL plus (Pro) ¶ or Greatest Common Factor?

TOOL plus (Pro) ¶ ships an update every 2 days, and Greatest Common Factor every 38 months. Most recently, TOOL plus (Pro) ¶ was updated on August 6, 2026 and Greatest Common Factor on September 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*