# GroundZERO! vs 診断for鬼滅の刃(きめつのやいば)

The clearest difference is in-app purchases: 診断for鬼滅の刃(きめつのやいば) at none against GroundZERO!'s 3. GroundZERO!'s advantage is ads (none vs shown) and review sentiment (100% vs 86%). On price, update cadence and device support there is nothing between them.

Both are free to download. GroundZERO! sells 3 one-off in-app purchases. 診断for鬼滅の刃(きめつのやいば) asks for nothing beyond the download.

GroundZERO! ships an update every 8 days, 診断for鬼滅の刃(きめつのやいば) every 6 days. The most recent releases landed on October 3, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | GroundZERO! | 診断for鬼滅の刃(きめつのやいば) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/groundzero/id900284870/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | **100.0% of reviews** | 86.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 83 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [Ryo Shirakawa](https://appshunter.io/developer/1381279784) | [colabom](https://appshunter.io/developer/1501285294) |

## What reviewers say

### GroundZERO!

[App page](https://appshunter.io/ios/app/groundzero/id900284870)

Engage in a unique blend of rhythm and simulation gameplay. Launch missiles to achieve a global objective. Experience a distinctive approach to entertainment.

**Highlights:** Rhythm gameplay, Simulation elements, Missile launching mechanics, Global extermination objective

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gold Missile + 3 | $0.99 | one-time |
| Gold Missile + 7 | $1.99 | one-time |
| Gold Missile + 12 | $2.99 | one-time |


### 診断for鬼滅の刃(きめつのやいば)

[App page](https://appshunter.io/ios/app/for/id1501285295)

This unofficial fan-made app offers various quizzes and AI-powered diagnostics related to the popular anime series. Discover your character type, compatibility, rank, and even generate unique breathing styles, Hashira, Nichirin swords, and haoris.

**Highlights:** Character personality quizzes, Compatibility diagnostics, Rank and disciple quizzes, AI-generated breathing styles, AI-generated Hashira, AI-generated Nichirin swords, AI-generated haoris, Original character storage

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

**In-app purchases:** none


## Frequently asked questions

### Is GroundZERO! free?

GroundZERO! is free to download, with in-app purchases available.

### Is 診断for鬼滅の刃(きめつのやいば) free?

診断for鬼滅の刃(きめつのやいば) is free to download, with no in-app purchases.

### Do GroundZERO! or 診断for鬼滅の刃(きめつのやいば) have ads?

診断for鬼滅の刃(きめつのやいば) shows ads; GroundZERO! does not.

### Which is updated more often, GroundZERO! or 診断for鬼滅の刃(きめつのやいば)?

GroundZERO! ships an update every 8 days, and 診断for鬼滅の刃(きめつのやいば) every 6 days. Most recently, GroundZERO! was updated on October 3, 2026 and 診断for鬼滅の刃(きめつのやいば) on October 6, 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.*