# 性格診断 for 鬼滅の刃(きめつのやいば) vs peek.ai.boo

The clearest difference is in-app purchases: 性格診断 for 鬼滅の刃(きめつのやいば) at none against peek.ai.boo's 4. 性格診断 for 鬼滅の刃(きめつのやいば) also leads on device support (3 vs 1) and iOS requirement (9.0 vs 18.0). peek.ai.boo's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. peek.ai.boo sells 4 in-app purchases, starting at $3.99 per 7 days. 性格診断 for 鬼滅の刃(きめつのやいば) asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on August 13, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | 性格診断 for 鬼滅の刃(きめつのやいば) | peek.ai.boo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/for/id1502876090/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | Ad-supported | — |
| Size | 24 MB | 20 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Junpei Shimotsu](https://appshunter.io/developer/882299124) | [SAVAS KOC](https://appshunter.io/developer/1792030670) |

## What reviewers say

### 性格診断 for 鬼滅の刃(きめつのやいば)

[App page](https://appshunter.io/ios/app/for/id1502876090)

Discover which character from the popular anime "Demon Slayer" you are through a series of 2-choice personality quizzes. Explore different character arcs, compatibility, and breathing styles. Be aware that some quizzes may contain spoilers.

**Highlights:** Character diagnosis (Demon Slayer Corps arc), Character diagnosis (Hashira arc), Character diagnosis (Twelve Kizuki arc), Compatibility diagnosis, Breathing style diagnosis, 2-choice question format

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

**In-app purchases:** none


### peek.ai.boo

[App page](https://appshunter.io/ios/app/peekaiboo/id6758838181)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $8.99 | per month |
| Semi-Annual | $17.99 | per 6 months |
| Yearly | $24.99 | per year |


## Frequently asked questions

### Is 性格診断 for 鬼滅の刃(きめつのやいば) free?

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

### Is peek.ai.boo free?

peek.ai.boo is free to download, with in-app purchases available.

### Do 性格診断 for 鬼滅の刃(きめつのやいば) or peek.ai.boo have ads?

性格診断 for 鬼滅の刃(きめつのやいば) shows ads; peek.ai.boo does not.

### Which is updated more often, 性格診断 for 鬼滅の刃(きめつのやいば) or peek.ai.boo?

性格診断 for 鬼滅の刃(きめつのやいば) ships an update every 6 months, and peek.ai.boo every 6 months. Most recently, 性格診断 for 鬼滅の刃(きめつのやいば) was updated on August 13, 2026 and peek.ai.boo on September 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.*