# Multinomial vs Harmonic Wave Equation Calc

The clearest difference is price: Multinomial at Free against Harmonic Wave Equation Calc's $2.99. Harmonic Wave Equation Calc's advantage is iOS requirement (13 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Multinomial is free to download; Harmonic Wave Equation Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Multinomial ships an update every 47 months, Harmonic Wave Equation Calc every 31 months. The most recent releases landed on September 18, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Multinomial | Harmonic Wave Equation Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/harmonic-wave-equation-calc/id1412323951/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 47 months | **Every 31 months** |
| Monetization | — | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | 18.6 | **13** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Reinhard MAENNER](https://appshunter.io/developer/578568275) | [Nitrio](https://appshunter.io/developer/321121189) |

## What reviewers say

### Multinomial

[App page](https://appshunter.io/ios/app/multinomial/id578568272)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Multinomial free?

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

### Is Harmonic Wave Equation Calc free?

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

### Do Multinomial or Harmonic Wave Equation Calc have ads?

Neither Multinomial nor Harmonic Wave Equation Calc shows ads.

### Which is updated more often, Multinomial or Harmonic Wave Equation Calc?

Multinomial ships an update every 47 months, and Harmonic Wave Equation Calc every 31 months. Most recently, Multinomial was updated on September 18, 2026 and Harmonic Wave Equation Calc on September 26, 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.*