# Bubbles in Space vs Blocker Stack

The clearest difference is ads: Bubbles in Space at none against Blocker Stack's shown. Blocker Stack's advantage is iOS requirement (12.0 vs 18.2). On price, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Bubbles in Space | Blocker Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 22 months | — |
| Size | 3 MB | 134 MB |
| Requires iOS | 18.2 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Huge Holdings Ltd](https://appshunter.io/developer/508584861) | [RayGames](https://appshunter.io/developer/1725090177) |

## What reviewers say

### Bubbles in Space

[App page](https://appshunter.io/ios/app/bubbles-in-space/id1010801758)

**Features:** macOS Compatibility

**In-app purchases:** none


### Blocker Stack

[App page](https://appshunter.io/ios/app/blocker-stack/id6478495421)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bubbles in Space free?

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

### Is Blocker Stack free?

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

### Do Bubbles in Space or Blocker Stack have ads?

Blocker Stack shows ads; Bubbles in Space does not.

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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.*