# ER3D Euler Rotations in 3D vs Notoo

The clearest difference is in-app purchases: ER3D Euler Rotations in 3D at none against Notoo's 3. ER3D Euler Rotations in 3D also leads on ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Notoo sells 3 in-app purchases, starting at $4.99 per 7 days. ER3D Euler Rotations in 3D asks for nothing beyond the download.

## The numbers

| Metric | ER3D Euler Rotations in 3D | Notoo |
| --- | --- | --- |
| 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** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | Free | — |
| Size | 114 MB | 69 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) | [Felix Angcot Jr](https://appshunter.io/developer/1791480908) |

## What reviewers say

### 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


### Notoo

[App page](https://appshunter.io/ios/app/notoo-ai-note-taker-and-summary/id6767136519)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly Plan | $4.99 | per 7 days |
| Pro Weekly Plan | $8.99 | per 7 days |
| Pro Yearly Plan | $89.99 | per year |


## Frequently asked questions

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

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

### Is Notoo free?

Notoo is free to download, with in-app purchases available.

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

Notoo 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.*