# SkyHighStack vs Block Blaster Fire Fly

The clearest difference is in-app purchases: SkyHighStack at none against Block Blaster Fire Fly's 3. SkyHighStack also leads on ads (none vs shown) and iOS requirement (14.0 vs 26.2). On price and device support there is nothing between them.

Both are free to download. Block Blaster Fire Fly sells 3 one-off in-app purchases. SkyHighStack asks for nothing beyond the download.

## The numbers

| Metric | SkyHighStack | Block Blaster Fire Fly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Daily | — |
| Size | 5 MB | 25 MB |
| Requires iOS | **14.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Penn Curtis](https://appshunter.io/developer/1772733523) | [ALAZ EREKUL](https://appshunter.io/developer/1869935123) |

## What reviewers say

### SkyHighStack

[App page](https://appshunter.io/ios/app/skyhighstack/id6741442802)

**Features:** macOS Compatibility

**In-app purchases:** none


### Block Blaster Fire Fly

[App page](https://appshunter.io/ios/app/block-blaster-fire-fly/id6759800194)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 200 Gems | $0.99 | one-time |
| 500 Gems | $1.99 | one-time |
| 1000 Gems | $3.99 | one-time |


## Frequently asked questions

### Is SkyHighStack free?

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

### Is Block Blaster Fire Fly free?

Block Blaster Fire Fly is free to download, with in-app purchases available.

### Do SkyHighStack or Block Blaster Fire Fly have ads?

Block Blaster Fire Fly shows ads; SkyHighStack 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.*