# Gears Classic vs ER3D Euler Rotations in 3D

The clearest difference is ads: ER3D Euler Rotations in 3D at none against Gears Classic's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | Gears Classic | ER3D Euler Rotations in 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/er3d-euler-rotations-in-3d/id6741169432/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 23 months | — |
| Monetization | — | Free |
| Size | 9 MB | 114 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Claudio Souza Mattos](https://appshunter.io/developer/1774316937) | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) |

## What reviewers say

### Gears Classic

[App page](https://appshunter.io/ios/app/gears-classic/id6670330328)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### ER3D Euler Rotations in 3D

[App page](https://appshunter.io/ios/app/er3d-euler-rotations-in-3d/id6741169432)

Explore 3D rotational kinematics with interactive models and augmented reality. Visualize complex concepts like yaw, pitch, roll, procession, nutation, and spin. Ideal for engineering students and learners.

**Highlights:** 3D rotational kinematics visualization, Augmented Reality (AR) mode, Space Shuttle and Gyroscope models, Adjustable angles (yaw, pitch, roll, etc.), Interactive Globe Earth model, Contextual text descriptions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gears Classic free?

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

### Is ER3D Euler Rotations in 3D free?

ER3D Euler Rotations in 3D is free to download, with no in-app purchases.

### Do Gears Classic or ER3D Euler Rotations in 3D have ads?

Gears Classic shows ads; ER3D Euler Rotations in 3D does not.

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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.*