# 古文の王様 vs 逆算勉強

The clearest difference is in-app purchases: 逆算勉強 at none against 古文の王様's 3. 逆算勉強 also leads on ads (none vs shown) and update cadence (daily vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. 古文の王様 sells 3 in-app purchases, starting at $2.49 per month. 逆算勉強 asks for nothing beyond the download.

古文の王様 ships an update every 2 weeks, 逆算勉強 daily. Both last shipped on October 30, 2026.

## The numbers

| Metric | 古文の王様 | 逆算勉強 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 139 MB | 51 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HANAUTA INC.](https://appshunter.io/developer/492009717) | [Kodai Maki](https://appshunter.io/developer/1674346013) |

## What reviewers say

### 古文の王様

[App page](https://appshunter.io/ios/app/id1632596421)

Master Japanese and Chinese classical literature with this quiz-style learning app. It covers high school curriculum for regular and entrance exams, offering short, engaging sessions and rewards for progress. Study anytime, anywhere, without needing physical books.

**Highlights:** Quiz-style learning, Over 400 literature questions, Short play sessions, Game-like progression, Rewards for quests, Ad-supported free version

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 特訓プラン | $2.49 | per month |
| 特訓プラン | $12.99 | per 6 months |
| 特訓プラン | $21.49 | per year |


### 逆算勉強

[App page](https://appshunter.io/ios/app/id6445865041)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 古文の王様 free?

古文の王様 is free to download, with in-app purchases available.

### Is 逆算勉強 free?

逆算勉強 is free to download, with no in-app purchases.

### Do 古文の王様 or 逆算勉強 have ads?

古文の王様 shows ads; 逆算勉強 does not.

### Which is updated more often, 古文の王様 or 逆算勉強?

古文の王様 ships an update every 2 weeks, and 逆算勉強 daily. Most recently, 古文の王様 was updated on October 30, 2026 and 逆算勉強 on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*