# iCrosss vs Set Theory Foundations

The clearest difference is price: Set Theory Foundations at Free against iCrosss's $0.99. iCrosss's advantage is iOS requirement (5.1.1 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Set Theory Foundations is free to download; iCrosss costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | iCrosss | Set Theory Foundations |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.7 (30 ratings)](https://appshunter.io/ios/app/icrosss/id431653759/reviews)** | — |
| Number of ratings | **30** | — |
| Positive reviews | 92.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Monetization | Free | — |
| Size | 9 MB | 38 MB |
| Requires iOS | **5.1.1** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oleh Yudin](https://appshunter.io/developer/381844540) | [AFTW LLC](https://appshunter.io/developer/1886356149) |

## What reviewers say

### iCrosss

[App page](https://appshunter.io/ios/app/icrosss/id431653759)

Explore and learn solid geometry with interactive 3D polyhedra. Visualize cross-sections by defining planes with three points. Access detailed information, formulas, and multiple viewing modes.

**Highlights:** Interactive 3D polyhedra models, Cross-section generation by plane definition, Multiple view modes (3D, Épure, 3D cut), Detailed polyhedron information and formulas, Favorites list for quick access, Tutorial mode for easy learning

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

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and easy-to-use interface
- 🎨 Beautiful 3D visualization and rendering
- 🔄 Smooth rotation and manipulation of shapes
- 📚 Comprehensive collection of geometric shapes
- 🧠 Excellent for learning and understanding geometry

**What reviewers complain about**

- 🐛 Occasional crashes and stability issues
- 🎨 Limited color customization options
- 🔋 Battery drain and memory consumption concerns
- 📖 Lack of clear instructions or help documentation
- 🎯 Missing common basic shapes

**Reported bugs**

- App crashes when removing panels
- Crashes during cross-section splitting
- Crashes when exporting to PDF
- Freezing and requiring system reboot
- Sudden unexpected shutdowns

**Requested features**

- Add cylinders, cones, and spheres
- Include rectangular prisms and basic solids
- Color customization for edges and faces
- Display geometric formulas and calculations
- Show number of faces, edges, and corners


### Set Theory Foundations

[App page](https://appshunter.io/ios/app/set-theory-foundations/id6773423842)

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

**In-app purchases:** none


## Frequently asked questions

### Is iCrosss free?

iCrosss costs $0.99, with no in-app purchases.

### Is Set Theory Foundations free?

Set Theory Foundations is free to download, with no in-app purchases.

### Do iCrosss or Set Theory Foundations have ads?

Neither iCrosss nor Set Theory Foundations shows ads.

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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.*