# Waffuru vs Kanji Flash Study

The clearest difference is in-app purchases: Kanji Flash Study at none against Waffuru's 2. Waffuru's advantage is update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Waffuru sells 2 in-app purchases, starting at $5.99 per month. Kanji Flash Study asks for nothing beyond the download.

Waffuru ships an update daily, Kanji Flash Study every 3 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | Waffuru | Kanji Flash Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 days |
| Size | 79 MB | 2 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Domenic Mastromatteo](https://appshunter.io/developer/1885206124) | [Quinten Sandberg](https://appshunter.io/developer/1892850892) |

## What reviewers say

### Waffuru

[App page](https://appshunter.io/ios/app/waffuru/id6760595173)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Waffuru Premium Monthly | $5.99 | per month |
| Waffuru Premium Yearly | $59.99 | per year |


### Kanji Flash Study

[App page](https://appshunter.io/ios/app/kanji-flash-study/id6762087579)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Waffuru free?

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

### Is Kanji Flash Study free?

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

### Do Waffuru or Kanji Flash Study have ads?

Neither Waffuru nor Kanji Flash Study shows ads.

### Which is updated more often, Waffuru or Kanji Flash Study?

Waffuru ships an update daily, and Kanji Flash Study every 3 days. Most recently, Waffuru was updated on October 3, 2026 and Kanji Flash Study on October 3, 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.*