# Harmonic Wave Equation Calc vs Greatest Common Factor

The clearest difference is price: Greatest Common Factor at $0.99 against Harmonic Wave Equation Calc's $2.99. On rating, ratings volume, update cadence and ads there is nothing between them.

Harmonic Wave Equation Calc costs $2.99 and Greatest Common Factor $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 Harmonic Wave Equation Calc against 5.0 for Greatest Common Factor. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Harmonic Wave Equation Calc ships an update every 31 months, Greatest Common Factor every 38 months. The most recent releases landed on July 6, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Harmonic Wave Equation Calc | Greatest Common Factor |
| --- | --- | --- |
| Price | $2.99 | **$0.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/greatest-common-factor/id1573121817/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 31 months** | Every 38 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **13** | 14.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tan Chia Ling](https://appshunter.io/developer/321121189) | [H Valeur](https://appshunter.io/developer/621824042) |

## What reviewers say

### Harmonic Wave Equation Calc

[App page](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951)

This physics and math calculator quickly determines wave properties like displacement, velocity, and amplitude. It provides instant calculations with copyable results and includes reference formulas. Optimized for everyday use, it supports high precision and various units.

**Highlights:** Instant wave calculations, Copyable results, Included reference formulas, Supports 16 decimal places, Multiple unit support, Ad-free and private

**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 Harmonic Wave Equation Calc free?

Harmonic Wave Equation Calc costs $2.99, with no in-app purchases.

### Is Greatest Common Factor free?

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

### Which has better reviews, Harmonic Wave Equation Calc or Greatest Common Factor?

Harmonic Wave Equation Calc and Greatest Common Factor are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Harmonic Wave Equation Calc or Greatest Common Factor have ads?

Neither Harmonic Wave Equation Calc nor Greatest Common Factor shows ads.

### Which is updated more often, Harmonic Wave Equation Calc or Greatest Common Factor?

Harmonic Wave Equation Calc ships an update every 31 months, and Greatest Common Factor every 38 months. Most recently, Harmonic Wave Equation Calc was updated on July 6, 2026 and Greatest Common Factor on September 11, 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.*