# インベーダー J vs 別班サバイブ

The clearest difference is ads: インベーダー J at none against 別班サバイブ's shown. 別班サバイブ's advantage is update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement 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, 別班サバイブ every 9 days. The most recent releases landed on November 3, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | インベーダー J | 別班サバイブ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 18 MB | 123 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [takayuki atsumi](https://appshunter.io/developer/1495474977) | [Tsuyoshi Miwa](https://appshunter.io/developer/6780837715) |

## 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


### 別班サバイブ

[App page](https://appshunter.io/ios/app/id6809468344)

**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 別班サバイブ free?

別班サバイブ is free to download, with no in-app purchases.

### Do インベーダー J or 別班サバイブ have ads?

別班サバイブ shows ads; インベーダー J does not.

### Which is updated more often, インベーダー J or 別班サバイブ?

インベーダー J ships an update every 2 months, and 別班サバイブ every 9 days. Most recently, インベーダー J was updated on November 3, 2026 and 別班サバイブ on November 10, 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.*