# 皇室典範~皇室の知識を身につけよう~ vs 聞き読み!日本国憲法

The clearest difference is ads: 皇室典範~皇室の知識を身につけよう~ at none against 聞き読み!日本国憲法's shown. 皇室典範~皇室の知識を身につけよう~ also leads on iOS requirement (6.0 vs 18.5). 聞き読み!日本国憲法's advantage is update cadence (every 4 months vs every 10 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.

皇室典範~皇室の知識を身につけよう~ ships an update every 10 months, 聞き読み!日本国憲法 every 4 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 皇室典範~皇室の知識を身につけよう~ | 聞き読み!日本国憲法 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 4 months** |
| Size | 1 MB | 31 MB |
| Requires iOS | **6.0** | 18.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takaaki Sasaki](https://appshunter.io/developer/525616408) | [Tatsuo Watanabe](https://appshunter.io/developer/908088929) |

## What reviewers say

### 皇室典範~皇室の知識を身につけよう~

[App page](https://appshunter.io/ios/app/id577708540)

**Features:** macOS Compatibility

**In-app purchases:** none


### 聞き読み!日本国憲法

[App page](https://appshunter.io/ios/app/id6756402213)

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

**In-app purchases:** none


## Frequently asked questions

### Is 皇室典範~皇室の知識を身につけよう~ free?

皇室典範~皇室の知識を身につけよう~ is free to download, with no in-app purchases.

### Is 聞き読み!日本国憲法 free?

聞き読み!日本国憲法 is free to download, with no in-app purchases.

### Do 皇室典範~皇室の知識を身につけよう~ or 聞き読み!日本国憲法 have ads?

聞き読み!日本国憲法 shows ads; 皇室典範~皇室の知識を身につけよう~ does not.

### Which is updated more often, 皇室典範~皇室の知識を身につけよう~ or 聞き読み!日本国憲法?

皇室典範~皇室の知識を身につけよう~ ships an update every 10 months, and 聞き読み!日本国憲法 every 4 months. Most recently, 皇室典範~皇室の知識を身につけよう~ was updated on October 26, 2026 and 聞き読み!日本国憲法 on October 24, 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.*