# Kanji Study vs Red Sheet

The clearest difference is rating: Kanji Study at 4.7 against Red Sheet's 4.2. Kanji Study also leads on ads (none vs shown) and ratings volume (7.3K vs 5). Red Sheet's advantage is review sentiment (78% vs 67%) and device support (4 vs 2). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Kanji Study sells 6 one-off in-app purchases and Red Sheet sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Kanji Study holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Kanji Study has 7.3K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of Kanji Study's written reviews are positive against 78% of Red Sheet's, so the app with the better star average is not the one people write more warmly about.

Kanji Study ships an update every 2 days, Red Sheet every 3 days. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Kanji Study | Red Sheet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7.3K ratings)](https://appshunter.io/ios/app/kanji-study-learn-japanese/id1078107994/reviews)** | [4.2 (5 ratings)](https://appshunter.io/ios/app/red-sheet-pdf-study-app/id1580506756/reviews) |
| Number of ratings | **7.3K** | 5 |
| Positive reviews | 67.5% of reviews | **77.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 140 MB | 193 MB |
| Requires iOS | 17.5 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Luli Languages LLC](https://appshunter.io/developer/972910241) | [Foodmenu.world Inc.](https://appshunter.io/developer/1438351063) |

## What reviewers say

### Kanji Study

[App page](https://appshunter.io/ios/app/kanji-study-learn-japanese/id1078107994)

Master Japanese kanji through vocabulary words rather than rote memorization. Features include writing lessons with stroke detection, spaced repetition reviews, and full JLPT level coverage. Learn readings naturally, one word at a time, with audio pronunciation and offline access.

**Highlights:** Vocabulary-first kanji learning, Writing lessons with stroke detection, Spaced repetition reviews, JLPT N5-N1 coverage, Audio pronunciation, Offline functionality

**Features:** macOS Compatibility, Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Level 1 | $9.99 | one-time |
| Level 2 | $12.99 | one-time |
| Level 3 | $14.99 | one-time |
| Level 4 | $14.99 | one-time |
| Level 5 | $14.99 | one-time |
| All Levels | $29.99 | one-time |

**What reviewers like**

- 🚀 Great app for learning kanji
- 👍 Effective review system
- 💡 Organized by JLPT levels
- 👍 Affordable one-time purchase
- 👍 Helps with writing practice and muscle memory

**What reviewers complain about**

- 🐛 Sensitive kanji recognition, sometimes doesn't accept correct strokes
- 🐛 Review sessions can get very long and tedious
- 🐛 Inconsistent kanji definitions and translations
- 🐛 Lack of syncing progress across devices

**Reported bugs**

- Certain kanji not recognized correctly
- App crashing or freezing, especially during long review sessions
- Progress not syncing across devices

**Requested features**

- Option to customize review sessions (select specific kanji, JLPT levels, etc.)
- Add both on and kun readings for kanji
- Implement sentence practice and vocabulary exercises
- Add support for more languages (e.g. Russian)


### Red Sheet

[App page](https://appshunter.io/ios/app/red-sheet-pdf-study-app/id1580506756)

Create and study flashcards from your PDFs, notes, and images. This app lets you hide and reveal text to transform study materials into interactive flashcards for faster memorization. Supports various import options and flexible study tools.

**Highlights:** Create flashcards from PDFs, Import from note apps and cloud storage, Hide and reveal text for study, Create flashcards from photos and images, Vocabulary and word list flashcards, One-tap show/hide for quick review

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Special plan | $2.99 | per month |
| Monthly Super Saver Plan | $2.99 | per month |
| Monthly Value Plan | $3.99 | per month |
| Basic Plan | $5.99 | per month |
| 3 Month Plan - V 3.1.5 needed | $9.99 | per 3 months |
| Half year plan (Sale) | $17.99 | per 6 months |
| Half year plan - V2.9.0 needed | $22.99 | per 6 months |


## Frequently asked questions

### Is Kanji Study free?

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

### Is Red Sheet free?

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

### Which has better reviews, Kanji Study or Red Sheet?

Kanji Study is rated higher. Kanji Study averages 4.7 out of 5 from 7.3K ratings, while Red Sheet averages 4.2 from 5 ratings.

### Do Kanji Study or Red Sheet have ads?

Red Sheet shows ads; Kanji Study does not.

### Which is updated more often, Kanji Study or Red Sheet?

Kanji Study ships an update every 2 days, and Red Sheet every 3 days. Most recently, Kanji Study was updated on November 11, 2026 and Red Sheet on November 7, 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.*