# Four-stroke Otto engine 3D

> Interactive 3D Animation

Canonical page: [https://chrome-stats.com/d/id1376010957](https://chrome-stats.com/d/id1376010957)

## Overview

- **ID:** `id1376010957`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** MOZAIK Education Ltd.
- **Category:** Education
- **Rating:** 4.70 / 5 (96 ratings)
- **Version:** 1.3
- **Last updated:** 2019-06-18
- **First published:** 2018-05-13
- **Size:** 183 MB
- **Data as of:** 2026-09-19
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/four-stroke-otto-engine-3d/id1376010957)
- **Website:** [http://www.mozaweb.com](http://www.mozaweb.com/)
- **Privacy policy:** [http://www.mozaweb.com/privacy](http://www.mozaweb.com/privacy)

## Description

Four-stroke Otto engine 3D is an interactive 3D animation that demonstrates the four-stroke cycle used in most car engines. Users can rotate, zoom, and switch between predefined views to visualize piston and valve interactions. Some scenes offer a walk mode and narrated explanations to help learning.

Designed for learners aged 8–18, it supports multiple languages and pairs with mozaik3D to access more than 1200 scenes. Features include captions, built-in quizzes, VR mode, and easy navigation via a context menu for an engaging, accessible science education experience.

## Rankings

- #136,631 — Overall
- #10 — engine

## Review summary

Users praise the app for clean, high-quality 3D visuals and clear explanations of the Otto 4-stroke. The free, ad-free format is valued as a learning tool with engaging animations that show piston motion. Recurring feedback calls for more engine types, RPM/tachometer, and deeper technical details (bore/stroke, displacement, camshafts), plus UI labeling of parts. Minor realism issues like timing belt depiction are also noted.

### Pros

- High-quality, clean 3D visuals and illustrations of the Otto 4-stroke engine.
- Clear, easy-to-understand explanations of how the engine operates.
- Free to use with no ads, making it a strong learning tool.
- Engaging animations that realistically show piston motion and overall engine operation.

### Cons

- Requests for more engine types (e.g., V6, V8, I6) to broaden coverage.
- RPM realism lacking and no tachometer; engine cycle is slower than real life.
- Lacks on-screen labeling of parts when clicked; would benefit from part names.
- Desire for deeper technical content (bore/stroke, displacement, camshaft types such as SOHC/DOHC).
- Some graphical realism issues, such as timing belt bend/dip and belt not taut.

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1376010957)