# FlipShadow vs 日本史ニホンシア

The clearest difference is update cadence: 日本史ニホンシア at daily against FlipShadow's every 6 days. FlipShadow's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. FlipShadow sells 1 one-off in-app purchase and 日本史ニホンシア sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

FlipShadow ships an update every 6 days, 日本史ニホンシア daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FlipShadow | 日本史ニホンシア |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Daily** |
| Size | 4 MB | 135 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jong Seon Lee](https://appshunter.io/developer/1755967230) | [YUKIHIRO TANIGUCHI](https://appshunter.io/developer/6776082401) |

## What reviewers say

### FlipShadow

[App page](https://appshunter.io/ios/app/flipshadow-flash-cards/id6758394253)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Subsription | $9.99 | one-time |


### 日本史ニホンシア

[App page](https://appshunter.io/ios/app/id6794810146)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ニホンシア Pro 月額プラン | $5.99 | per month |
| ニホンシア Pro 年額プラン | $29.99 | per year |


## Frequently asked questions

### Is FlipShadow free?

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

### Is 日本史ニホンシア free?

日本史ニホンシア is free to download, with in-app purchases available.

### Do FlipShadow or 日本史ニホンシア have ads?

Neither FlipShadow nor 日本史ニホンシア shows ads.

### Which is updated more often, FlipShadow or 日本史ニホンシア?

FlipShadow ships an update every 6 days, and 日本史ニホンシア daily. Most recently, FlipShadow was updated on October 24, 2026 and 日本史ニホンシア on October 25, 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.*