# BRAIN PUZZLE ＆ IQ TEST vs 性格診断 for 鬼滅の刃(きめつのやいば)

The clearest difference is review sentiment: BRAIN PUZZLE ＆ IQ TEST at 80% against 性格診断 for 鬼滅の刃(きめつのやいば)'s 17%. BRAIN PUZZLE ＆ IQ TEST also leads on ads (none vs shown) and update cadence (every 2 months vs every 6 months). On price, 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.

BRAIN PUZZLE ＆ IQ TEST ships an update every 2 months, 性格診断 for 鬼滅の刃(きめつのやいば) every 6 months. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BRAIN PUZZLE ＆ IQ TEST | 性格診断 for 鬼滅の刃(きめつのやいば) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/for/id1502876090/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **80.0% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | **Free** | Ad-supported |
| Size | 6 MB | 24 MB |
| Requires iOS | **7.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [daisuke kawano](https://appshunter.io/developer/964854037) | [Junpei Shimotsu](https://appshunter.io/developer/882299124) |

## What reviewers say

### BRAIN PUZZLE ＆ IQ TEST

[App page](https://appshunter.io/ios/app/brain-puzzle-iq-test/id964854038)

Explore your brain's structure with engaging puzzles and IQ tests. Discover if your thinking is more emotional or logical and compare your cognitive patterns to historical figures. This app offers a unique way to understand your own mind.

**Highlights:** Brain puzzle challenges, IQ testing, Brain structure analysis, Comparison to historical figures, Emotional vs. logical thinking assessment

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is BRAIN PUZZLE ＆ IQ TEST free?

BRAIN PUZZLE ＆ IQ TEST is free to download, with no in-app purchases.

### 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.

### Do BRAIN PUZZLE ＆ IQ TEST or 性格診断 for 鬼滅の刃(きめつのやいば) have ads?

性格診断 for 鬼滅の刃(きめつのやいば) shows ads; BRAIN PUZZLE ＆ IQ TEST does not.

### Which is updated more often, BRAIN PUZZLE ＆ IQ TEST or 性格診断 for 鬼滅の刃(きめつのやいば)?

BRAIN PUZZLE ＆ IQ TEST ships an update every 2 months, and 性格診断 for 鬼滅の刃(きめつのやいば) every 6 months. Most recently, BRAIN PUZZLE ＆ IQ TEST was updated on October 15, 2026 and 性格診断 for 鬼滅の刃(きめつのやいば) on October 5, 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.*