# インベーダー J vs Block Puzzle

The clearest difference is ads: インベーダー J at none against Block Puzzle's shown. Block Puzzle's advantage is iOS requirement (11.0 vs 15.6). On price, update cadence, 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.

インベーダー J ships an update every 2 months, Block Puzzle every 5 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | インベーダー J | Block Puzzle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Size | 18 MB | 80 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [takayuki atsumi](https://appshunter.io/developer/1495474977) | [Ha Do](https://appshunter.io/developer/1652277782) |

## What reviewers say

### インベーダー J

[App page](https://appshunter.io/ios/app/j-invaders-j/id1554028591)

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

**In-app purchases:** none


### Block Puzzle

[App page](https://appshunter.io/ios/app/block-puzzle-funny-kill-time/id6444549578)

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

**In-app purchases:** none


## Frequently asked questions

### Is インベーダー J free?

インベーダー J is free to download, with no in-app purchases.

### Is Block Puzzle free?

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

### Do インベーダー J or Block Puzzle have ads?

Block Puzzle shows ads; インベーダー J does not.

### Which is updated more often, インベーダー J or Block Puzzle?

インベーダー J ships an update every 2 months, and Block Puzzle every 5 weeks. Most recently, インベーダー J was updated on November 3, 2026 and Block Puzzle on November 3, 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.*