# SpiroDesigner vs Blox 3D

The clearest difference is rating: SpiroDesigner at 5.0 against Blox 3D's 4.6. SpiroDesigner also leads on update cadence (every 5 months vs every 15 months) and price ($2.99 vs $4.99). Blox 3D's advantage is ratings volume (29 vs 1) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

SpiroDesigner costs $2.99 and Blox 3D $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SpiroDesigner holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Blox 3D has 29 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of SpiroDesigner's written reviews are positive against 91% of Blox 3D's.

SpiroDesigner ships an update every 5 months, Blox 3D every 15 months. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SpiroDesigner | Blox 3D |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spirodesigner-spirograph-app/id595177167/reviews)** | [4.6 (29 ratings)](https://appshunter.io/ios/app/blox-3d/id839929590/reviews) |
| Number of ratings | 1 | **29** |
| Positive reviews | **100.0% of reviews** | 91.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 15 months |
| Monetization | Paid | **Free** |
| Size | 19 MB | 185 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masahiko Fukuyama](https://appshunter.io/developer/595177290) | [Arjun Gupte](https://appshunter.io/developer/620272974) |

## What reviewers say

### SpiroDesigner

[App page](https://appshunter.io/ios/app/spirodesigner-spirograph-app/id595177167)

Create intricate geometric patterns and mathematical curves with this digital spirograph tool. Customize circles, lines, and colors to design unique artwork. Features include saving, exporting, and automatic drawing modes.

**Highlights:** Draw epicycloids and hypotrochoids, Customize circle radii and line thickness, Select and edit colors, Save and export drawings as PNG, Automatic drawing mode, Randomize settings, Tutorial videos

**Features:** macOS Compatibility

**In-app purchases:** none


### Blox 3D

[App page](https://appshunter.io/ios/app/blox-3d/id839929590)

This app lets children build and animate 3D creations using intuitive controls. It's designed to foster creativity and visualization skills, with options to add moving parts and share creations.

**Highlights:** 3D block building, Add animated objects, Turntable mode for teaching, Intuitive tap controls, Sharing functionality, No ads or in-app purchases

**In-app purchases:** none


## Frequently asked questions

### Is SpiroDesigner free?

SpiroDesigner costs $2.99, with no in-app purchases.

### Is Blox 3D free?

Blox 3D costs $4.99, with no in-app purchases.

### Which has better reviews, SpiroDesigner or Blox 3D?

SpiroDesigner is rated higher. SpiroDesigner averages 5.0 out of 5 from 1 ratings, while Blox 3D averages 4.6 from 29 ratings.

### Do SpiroDesigner or Blox 3D have ads?

Neither SpiroDesigner nor Blox 3D shows ads.

### Which is updated more often, SpiroDesigner or Blox 3D?

SpiroDesigner ships an update every 5 months, and Blox 3D every 15 months. Most recently, SpiroDesigner was updated on October 14, 2026 and Blox 3D on October 17, 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.*