# 「ヒロシマの記憶AR」 vs Wiki Quick Study｜アシストシステム

The clearest difference is ads: 「ヒロシマの記憶AR」 at none against Wiki Quick Study｜アシストシステム's shown. 「ヒロシマの記憶AR」 also leads on iOS requirement (11.0 vs 15.6). Wiki Quick Study｜アシストシステム's advantage is update cadence (daily 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.

「ヒロシマの記憶AR」 ships an update every 6 months, Wiki Quick Study｜アシストシステム daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 「ヒロシマの記憶AR」 | Wiki Quick Study｜アシストシステム |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Daily** |
| Monetization | Free | — |
| Size | 531 MB | 26 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TIMELOOPER INC](https://appshunter.io/developer/1198864036) | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) |

## What reviewers say

### 「ヒロシマの記憶AR」

[App page](https://appshunter.io/ios/app/ar/id1559638908)

Experience historical accounts and materials related to the 1945 Hiroshima atomic bombing and the Peace Memorial Park before the bombing. Features the world's first holographic testimony from a survivor, aiming to inspire reflection on peace.

**Highlights:** AR/VR historical experience, Atomic bombing accounts and materials, Pre-bombing Peace Memorial Park visuals, Holographic survivor testimony, Peace reflection tool

**In-app purchases:** none


### Wiki Quick Study｜アシストシステム

[App page](https://appshunter.io/ios/app/wiki-quick-study/id6755429456)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 「ヒロシマの記憶AR」 free?

「ヒロシマの記憶AR」 is free to download, with no in-app purchases.

### Is Wiki Quick Study｜アシストシステム free?

Wiki Quick Study｜アシストシステム is free to download, with no in-app purchases.

### Do 「ヒロシマの記憶AR」 or Wiki Quick Study｜アシストシステム have ads?

Wiki Quick Study｜アシストシステム shows ads; 「ヒロシマの記憶AR」 does not.

### Which is updated more often, 「ヒロシマの記憶AR」 or Wiki Quick Study｜アシストシステム?

「ヒロシマの記憶AR」 ships an update every 6 months, and Wiki Quick Study｜アシストシステム daily. Most recently, 「ヒロシマの記憶AR」 was updated on November 3, 2026 and Wiki Quick Study｜アシストシステム 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.*