# Curved Spaces vs StarPromenade

The clearest difference is price: Curved Spaces at Free against StarPromenade's $0.99. StarPromenade's advantage is update cadence (every 2 months vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Curved Spaces is free to download; StarPromenade costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Curved Spaces ships an update every 5 months, StarPromenade every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Curved Spaces | StarPromenade |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (26 ratings)](https://appshunter.io/ios/app/curved-spaces/id1417178571/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 11 MB | 2 MB |
| Requires iOS | 14.0 | **13.5** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeff Weeks](https://appshunter.io/developer/326104308) | [Takao Akatsu](https://appshunter.io/developer/1530946331) |

## What reviewers say

### Curved Spaces

[App page](https://appshunter.io/ios/app/curved-spaces/id1417178571)

Explore multi-connected universes with this flight simulator. Visualize how light wraps around complex spaces, creating repeating crystalline patterns. It's a tool for students and researchers in topology and cosmology.

**Highlights:** Multi-connected universe simulation, Visualizes light wrapping, Crystalline pattern display, Topology research tool, Cosmology research tool, Educational for 3-manifolds

**In-app purchases:** none


### StarPromenade

[App page](https://appshunter.io/ios/app/starpromenade/id1548250534)

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

**In-app purchases:** none


## Frequently asked questions

### Is Curved Spaces free?

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

### Is StarPromenade free?

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

### Do Curved Spaces or StarPromenade have ads?

Neither Curved Spaces nor StarPromenade shows ads.

### Which is updated more often, Curved Spaces or StarPromenade?

Curved Spaces ships an update every 5 months, and StarPromenade every 2 months. Most recently, Curved Spaces was updated on November 2, 2026 and StarPromenade on November 3, 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.*