# Crazy Kanji vs Hack Kanji AI

The clearest difference is rating: Hack Kanji AI at 5.0 against Crazy Kanji's 3.7. Hack Kanji AI also leads on update cadence (fortnightly vs every 7 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Hack Kanji AI holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Crazy Kanji ships an update every 7 months, Hack Kanji AI fortnightly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Crazy Kanji | Hack Kanji AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/crazy-kanji/id903241632/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hack-kanji-ai/id6739555322/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 5 MB | 120 MB |
| Requires iOS | **15.6** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tien Le](https://appshunter.io/developer/840899581) | [Son Le Long](https://appshunter.io/developer/1537534911) |

## What reviewers say

### Crazy Kanji

[App page](https://appshunter.io/ios/app/crazy-kanji/id903241632)

This game uses a high-intensity repetition method to help users memorize Chinese characters (kanji) and their Vietnamese readings. Learn and play anytime, anywhere to maximize efficiency and retention. The updated interface enhances the game's effectiveness.

**Highlights:** Repetition-based memorization, Learn kanji and Vietnamese readings, Play anytime, anywhere, Improved interface, Supports basic and full radicals, JLPT N5-N1 kanji sets

**Features:** macOS Compatibility

**In-app purchases:** none


### Hack Kanji AI

[App page](https://appshunter.io/ios/app/hack-kanji-ai/id6739555322)

Learn Japanese Kanji with a free, gamified app designed for Vietnamese speakers. It uses a science-based memorization method and offers AI-powered pronunciation practice, writing exercises, and JLPT/JFT preparation.

**Highlights:** 2136 Kanji characters and 241 radicals, N5-N1 level classification, AI-powered pronunciation practice, Interactive Kanji writing exercises, Gamified learning with progress tracking, JLPT and JFT preparation

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

**In-app purchases:** none


## Frequently asked questions

### Is Crazy Kanji free?

Crazy Kanji is free to download, with no in-app purchases.

### Is Hack Kanji AI free?

Hack Kanji AI is free to download, with no in-app purchases.

### Which has better reviews, Crazy Kanji or Hack Kanji AI?

Hack Kanji AI is rated higher. Crazy Kanji averages 3.7 out of 5 from 3 ratings, while Hack Kanji AI averages 5.0 from 2 ratings.

### Do Crazy Kanji or Hack Kanji AI have ads?

Neither Crazy Kanji nor Hack Kanji AI shows ads.

### Which is updated more often, Crazy Kanji or Hack Kanji AI?

Crazy Kanji ships an update every 7 months, and Hack Kanji AI fortnightly. Most recently, Crazy Kanji was updated on November 1, 2026 and Hack Kanji AI 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.*