# カードで日本史｜アシストシステム vs Study Flight

The clearest difference is in-app purchases: Study Flight at none against カードで日本史｜アシストシステム's 1. Study Flight also leads on ads (none vs shown). カードで日本史｜アシストシステム's advantage is iOS requirement (15.0 vs 18.0). On price and device support there is nothing between them.

Both are free to download. カードで日本史｜アシストシステム sells 1 one-off in-app purchase. Study Flight asks for nothing beyond the download.

## The numbers

| Metric | カードで日本史｜アシストシステム | Study Flight |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | — |
| Size | 254 MB | 44 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tsuyoshi Hayakawa](https://appshunter.io/developer/314516929) | [Yuito Kobayashi](https://appshunter.io/developer/6810911024) |

## What reviewers say

### カードで日本史｜アシストシステム

[App page](https://appshunter.io/ios/app/id6741650790)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| カードの追加 | $2.99 | one-time |


### Study Flight

[App page](https://appshunter.io/ios/app/study-flight/id6810911022)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is カードで日本史｜アシストシステム free?

カードで日本史｜アシストシステム is free to download, with in-app purchases available.

### Is Study Flight free?

Study Flight is free to download, with no in-app purchases.

### Do カードで日本史｜アシストシステム or Study Flight have ads?

カードで日本史｜アシストシステム shows ads; Study Flight does not.

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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.*