# 皇室典範~皇室の知識を身につけよう~ vs 歴代天皇おぼえまSHOW！

The clearest difference is in-app purchases: 皇室典範~皇室の知識を身につけよう~ at none against 歴代天皇おぼえまSHOW！'s 1. 皇室典範~皇室の知識を身につけよう~ also leads on ads (none vs shown) and iOS requirement (6.0 vs 14.5). 歴代天皇おぼえまSHOW！'s advantage is update cadence (daily vs every 10 months). On price and device support there is nothing between them.

Both are free to download. 歴代天皇おぼえまSHOW！ sells 1 one-off in-app purchase. 皇室典範~皇室の知識を身につけよう~ asks for nothing beyond the download.

皇室典範~皇室の知識を身につけよう~ ships an update every 10 months, 歴代天皇おぼえまSHOW！ daily. The most recent releases landed on October 6, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | 皇室典範~皇室の知識を身につけよう~ | 歴代天皇おぼえまSHOW！ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Daily** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 14 MB |
| Requires iOS | **6.0** | 14.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takaaki Sasaki](https://appshunter.io/developer/525616408) | [Akira Fujisawa](https://appshunter.io/developer/1533514621) |

## 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


### 歴代天皇おぼえまSHOW！

[App page](https://appshunter.io/ios/app/show/id1668527121)

This app helps users memorize the names of past emperors. It's primarily designed for students preparing for exams but is also useful for anyone wanting to acquire general knowledge. Various modes are available to suit different learning styles.

**Highlights:** Memorize past emperors, Targeted for exam preparation, Acquire general knowledge, Multiple learning modes, Error correction reporting

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $2.99 | one-time |


## 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 歴代天皇おぼえまSHOW！ free?

歴代天皇おぼえまSHOW！ is free to download, with in-app purchases available.

### Do 皇室典範~皇室の知識を身につけよう~ or 歴代天皇おぼえまSHOW！ have ads?

歴代天皇おぼえまSHOW！ 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 歴代天皇おぼえまSHOW！?

皇室典範~皇室の知識を身につけよう~ ships an update every 10 months, and 歴代天皇おぼえまSHOW！ daily. Most recently, 皇室典範~皇室の知識を身につけよう~ was updated on October 6, 2026 and 歴代天皇おぼえまSHOW！ on September 29, 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.*