# Gravity Grid vs Black Holes

The clearest difference is iOS requirement: Black Holes at 18.6 against Gravity Grid's 26.4. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Gravity Grid ships an update every 4 days, Black Holes every 5 days. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Gravity Grid | Black Holes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 5 days |
| Size | 6 MB | 6 MB |
| Requires iOS | 26.4 | **18.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ali Aleid](https://appshunter.io/developer/1890730349) | [Christopher Graeb](https://appshunter.io/developer/1896331802) |

## What reviewers say

### Gravity Grid

[App page](https://appshunter.io/ios/app/gravity-grid-orb-maze/id6764528875)

**Features:** macOS Compatibility

**In-app purchases:** none


### Black Holes

[App page](https://appshunter.io/ios/app/black-holes-logic-tile-puzzle/id6801933021)

**In-app purchases:** none


## Frequently asked questions

### Is Gravity Grid free?

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

### Is Black Holes free?

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

### Do Gravity Grid or Black Holes have ads?

Both Gravity Grid and Black Holes show ads.

### Which is updated more often, Gravity Grid or Black Holes?

Gravity Grid ships an update every 4 days, and Black Holes every 5 days. Most recently, Gravity Grid was updated on October 6, 2026 and Black Holes on October 8, 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.*