# SkyEngine vs Black Hole Sandbox

SkyEngine and Black Hole Sandbox are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

SkyEngine ships an update every 8 days, Black Hole Sandbox fortnightly. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | SkyEngine | Black Hole Sandbox |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/black-hole-sandbox/id6810945165/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Size | 23 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | +4 |
| Developer | [ZIRUI LYU](https://appshunter.io/developer/1896284758) | [Tim Corin](https://appshunter.io/developer/6785116779) |

## What reviewers say

### SkyEngine

[App page](https://appshunter.io/ios/app/skyengine/id6766723696)

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

**In-app purchases:** none


### Black Hole Sandbox

[App page](https://appshunter.io/ios/app/black-hole-sandbox/id6810945165)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SkyEngine free?

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

### Is Black Hole Sandbox free?

Black Hole Sandbox is free to download, with no in-app purchases.

### Do SkyEngine or Black Hole Sandbox have ads?

Neither SkyEngine nor Black Hole Sandbox shows ads.

### Which is updated more often, SkyEngine or Black Hole Sandbox?

SkyEngine ships an update every 8 days, and Black Hole Sandbox fortnightly. Most recently, SkyEngine was updated on November 9, 2026 and Black Hole Sandbox on November 10, 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.*