# ENGINO kidCAD (3D Viewer) vs Plus

The clearest difference is review sentiment: Plus at 82% against ENGINO kidCAD (3D Viewer)'s 18%. Plus also leads on rating (4.3 vs 2.7) and update cadence (every 5 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Plus holds the better App Store score, 4.3 against 2.7. Both are backed by a comparable volume of ratings — 53 and 86 respectively. Written reviews point the same way: 18% of ENGINO kidCAD (3D Viewer)'s written reviews are positive against 82% of Plus's.

ENGINO kidCAD (3D Viewer) ships an update every 3 months, Plus every 5 weeks. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | ENGINO kidCAD (3D Viewer) | Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (53 ratings)](https://appshunter.io/ios/app/engino-kidcad-3d-viewer/id962175208/reviews) | **[4.3 (86 ratings)](https://appshunter.io/ios/app/plus-plus-instructions/id1662081626/reviews)** |
| Number of ratings | 53 | **86** |
| Positive reviews | 17.6% of reviews | **81.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 160 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Engino](https://appshunter.io/developer/875789415) | [Nova Dev](https://appshunter.io/developer/1662081628) |

## What reviewers say

### ENGINO kidCAD (3D Viewer)

[App page](https://appshunter.io/ios/app/engino-kidcad-3d-viewer/id962175208)

Explore and interact with 3D models of various vehicles and machines. Rotate, zoom, and explode models to understand their construction and assembly. Access an ever-growing library of designs for educational and creative purposes.

**Highlights:** 3D model viewing, Rotate and zoom functionality, Explode model feature, Extensive model library, Continually updated content, Educational construction system models

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

**In-app purchases:** none


### Plus

[App page](https://appshunter.io/ios/app/plus-plus-instructions/id1662081626)

Access a vast library of building instructions and tutorials for Plus-Plus blocks. Create hundreds of unique 2D and 3D designs with detailed guides showing block counts and colors needed. New content is regularly added to inspire your next creation.

**Highlights:** Over 1000 step-by-step tutorials, Create 2D and 3D builds, Shows block and color requirements, New content added regularly, Free and easy to use

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

**In-app purchases:** none


## Frequently asked questions

### Is ENGINO kidCAD (3D Viewer) free?

ENGINO kidCAD (3D Viewer) is free to download, with no in-app purchases.

### Is Plus free?

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

### Which has better reviews, ENGINO kidCAD (3D Viewer) or Plus?

Plus is rated higher. ENGINO kidCAD (3D Viewer) averages 2.7 out of 5 from 53 ratings, while Plus averages 4.3 from 86 ratings.

### Do ENGINO kidCAD (3D Viewer) or Plus have ads?

Neither ENGINO kidCAD (3D Viewer) nor Plus shows ads.

### Which is updated more often, ENGINO kidCAD (3D Viewer) or Plus?

ENGINO kidCAD (3D Viewer) ships an update every 3 months, and Plus every 5 weeks. Most recently, ENGINO kidCAD (3D Viewer) was updated on September 20, 2026 and Plus on September 12, 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.*