# インベーダー J vs INVASIONSTRIKE

The clearest difference is ads: インベーダー J at none against INVASIONSTRIKE's shown. INVASIONSTRIKE's advantage is update cadence (every 4 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, INVASIONSTRIKE every 4 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | インベーダー J | INVASIONSTRIKE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 18 MB | 194 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [takayuki atsumi](https://appshunter.io/developer/1495474977) | [Brainstorm Co.,Ltd.](https://appshunter.io/developer/598905478) |

## 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


### INVASIONSTRIKE

[App page](https://appshunter.io/ios/app/invasionstrike/id6755762731)

**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 INVASIONSTRIKE free?

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

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

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

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

インベーダー J ships an update every 2 months, and INVASIONSTRIKE every 4 days. Most recently, インベーダー J was updated on October 11, 2026 and INVASIONSTRIKE on October 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.*