# 日本国憲法 vs Brain Infinity

The clearest difference is update cadence: Brain Infinity at every 5 days against 日本国憲法's every 3 weeks. Brain Infinity also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. 日本国憲法 sells 1 one-off in-app purchase and Brain Infinity sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

日本国憲法 ships an update every 3 weeks, Brain Infinity every 5 days. Both last shipped on October 30, 2026.

## The numbers

| Metric | 日本国憲法 | Brain Infinity |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 1 MB | 72 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michiaki FUJIKAKE](https://appshunter.io/developer/1787375652) | [YUTA UEDA](https://appshunter.io/developer/1853129120) |

## What reviewers say

### 日本国憲法

[App page](https://appshunter.io/ios/app/id6739873331)

This app provides easy access to the Japanese Constitution, both old and new. Designed for simplicity and readability on mobile devices, it offers a clean interface without ads. Users can suggest improvements to help shape its future development.

**Highlights:** Access to old and new Japanese Constitutions, Simple, single-screen display of articles, Optimized readability for mobile screens, Ad-free experience, User feedback for future development

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 作者に缶コーヒー代を送る | $0.99 | one-time |


### Brain Infinity

[App page](https://appshunter.io/ios/app/brain-infinity-mind-workout/id6755319401)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is 日本国憲法 free?

日本国憲法 is free to download, with in-app purchases available.

### Is Brain Infinity free?

Brain Infinity is free to download, with in-app purchases available.

### Do 日本国憲法 or Brain Infinity have ads?

Neither 日本国憲法 nor Brain Infinity shows ads.

### Which is updated more often, 日本国憲法 or Brain Infinity?

日本国憲法 ships an update every 3 weeks, and Brain Infinity every 5 days. Most recently, 日本国憲法 was updated on October 30, 2026 and Brain Infinity on October 30, 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.*