# Unfold vs Pythagoras Interactive

The clearest difference is price: Pythagoras Interactive at Free against Unfold's $0.99. Pythagoras Interactive also leads on rating (5.0 vs 4.2) and update cadence (every 2 weeks vs every 14 months). Unfold's advantage is ratings volume (46 vs 1) and iOS requirement (13.0 vs 16.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

Pythagoras Interactive is free to download; Unfold costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pythagoras Interactive holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Unfold has 46 ratings behind it against 1, so its average is the more settled of the two.

Unfold ships an update every 14 months, Pythagoras Interactive every 2 weeks. The most recent releases landed on October 10, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Unfold | Pythagoras Interactive |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.2 (46 ratings)](https://appshunter.io/ios/app/unfold/id557099803/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389/reviews)** |
| Number of ratings | **46** | 1 |
| Positive reviews | 83.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 1 MB | 1 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Hangas](https://appshunter.io/developer/433121902) | [ALAN PETERSON](https://appshunter.io/developer/1436516782) |

## What reviewers say

### Unfold

[App page](https://appshunter.io/ios/app/unfold/id557099803)

Explore the mathematical and artistic beauty of 3D geometric solids on your device. Interact with 63 different symmetrical shapes, rotating and unfolding them to understand their geometry. Discover Platonic, Archimedean, and Johnson solids with an elegant interface and customizable colors.

**Highlights:** Interactive 3D solids, 63 different geometric shapes, Rotate and zoom functionality, Fold and unfold solids, 18 color options

**Features:** macOS Compatibility

**In-app purchases:** none


### Pythagoras Interactive

[App page](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389)

Explore the Pythagorean Theorem with an interactive visual tool. Adjust triangle legs to observe real-time changes in square areas and hypotenuse length. Distances are displayed in radical form when necessary.

**Highlights:** Interactive triangle manipulation, Visual representation of squares on sides, Real-time updates to hypotenuse and areas, Radical form for distances, Clear labeling of sides and areas

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

**In-app purchases:** none


## Frequently asked questions

### Is Unfold free?

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

### Is Pythagoras Interactive free?

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

### Which has better reviews, Unfold or Pythagoras Interactive?

Pythagoras Interactive is rated higher. Unfold averages 4.2 out of 5 from 46 ratings, while Pythagoras Interactive averages 5.0 from 1 ratings.

### Do Unfold or Pythagoras Interactive have ads?

Neither Unfold nor Pythagoras Interactive shows ads.

### Which is updated more often, Unfold or Pythagoras Interactive?

Unfold ships an update every 14 months, and Pythagoras Interactive every 2 weeks. Most recently, Unfold was updated on October 10, 2026 and Pythagoras Interactive on September 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*