# Knit Blast 3D vs Block Trap

The clearest difference is in-app purchases: Knit Blast 3D at none against Block Trap's 1. Knit Blast 3D also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Block Trap sells 1 one-off in-app purchase. Knit Blast 3D asks for nothing beyond the download.

## The numbers

| Metric | Knit Blast 3D | Block Trap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 3 weeks |
| Size | 151 MB | 8 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Levent Poyraz](https://appshunter.io/developer/1615395327) | [Umut Corut](https://appshunter.io/developer/1618960320) |

## What reviewers say

### Knit Blast 3D

[App page](https://appshunter.io/ios/app/knit-blast-3d/id6741801639)

**Features:** macOS Compatibility

**In-app purchases:** none


### Block Trap

[App page](https://appshunter.io/ios/app/block-trap-drain-puzzle/id6765659931)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 times tube drain | $0.29 | one-time |


## Frequently asked questions

### Is Knit Blast 3D free?

Knit Blast 3D is free to download, with no in-app purchases.

### Is Block Trap free?

Block Trap is free to download, with in-app purchases available.

### Do Knit Blast 3D or Block Trap have ads?

Both Knit Blast 3D and Block Trap show ads.

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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.*