# Waves vs 3D Rotations and Quaternions

The clearest difference is update cadence: 3D Rotations and Quaternions at every 3 weeks against Waves's every 2 months. Waves's advantage is iOS requirement (11.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Waves ships an update every 2 months, 3D Rotations and Quaternions every 3 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Waves | 3D Rotations and Quaternions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (16 ratings)](https://appshunter.io/ios/app/waves-partial-diff-eq/id1447533890/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 30 MB | 1 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim Lucas](https://appshunter.io/developer/1136916670) | [Yuri Morozov](https://appshunter.io/developer/1582368813) |

## What reviewers say

### Waves

[App page](https://appshunter.io/ios/app/waves-partial-diff-eq/id1447533890)

Explore graphical solutions to partial differential equations with interactive activities. Visualize Fourier series and solutions to heat and wave equations, with options to customize conditions and save your work.

**Highlights:** Interactive PDE exploration, Fourier series plotting, Heat equation solutions, Wave equation solutions, Customizable boundary/initial conditions, Save and analyze work

**Features:** macOS Compatibility

**In-app purchases:** none


### 3D Rotations and Quaternions

[App page](https://appshunter.io/ios/app/3d-rotations-and-quaternions/id6618113140)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Waves free?

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

### Is 3D Rotations and Quaternions free?

3D Rotations and Quaternions is free to download, with no in-app purchases.

### Do Waves or 3D Rotations and Quaternions have ads?

Neither Waves nor 3D Rotations and Quaternions shows ads.

### Which is updated more often, Waves or 3D Rotations and Quaternions?

Waves ships an update every 2 months, and 3D Rotations and Quaternions every 3 weeks. Most recently, Waves was updated on October 13, 2026 and 3D Rotations and Quaternions on October 10, 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.*