# Math Joy vs 日途背单词

The clearest difference is in-app purchases: Math Joy at none against 日途背单词's 2. 日途背单词's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 日途背单词 sells 2 in-app purchases, starting at $7.99 per year. Math Joy asks for nothing beyond the download.

Math Joy ships an update every 3 months, 日途背单词 every 2 weeks. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Math Joy | 日途背单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/jlpt/id6775556157/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 20 MB | 37 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [EasyMeta](https://appshunter.io/developer/1753006440) | [Chengdu Yishiwu Information Technology Co., Ltd](https://appshunter.io/developer/6775556459) |

## What reviewers say

### Math Joy

[App page](https://appshunter.io/ios/app/math-joy-kids-arithmetic/id6756733034)

**Features:** macOS Compatibility

**In-app purchases:** none


### 日途背单词

[App page](https://appshunter.io/ios/app/jlpt/id6775556157)

Master Japanese vocabulary with diverse practice methods, including recall, spelling, and dictation. AI-powered explanations clarify grammar and usage, while smart scheduling optimizes your review sessions based on memory science. Tailor your learning by selecting specific word lists or textbook chapters.

**Highlights:** Five distinct practice methods, AI-powered explanations, Smart review scheduling (FSRS algorithm), Customizable word selection, Progress tracking and reports, Romaji keyboard for active recall, Offline PDF export for selected words

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 日途背单词会员年订阅 | $7.99 | per year |
| 日途背单词永久会员 | $24.99 | one-time |


## Frequently asked questions

### Is Math Joy free?

Math Joy is free to download, with no in-app purchases.

### Is 日途背单词 free?

日途背单词 is free to download, with in-app purchases available.

### Do Math Joy or 日途背单词 have ads?

Neither Math Joy nor 日途背单词 shows ads.

### Which is updated more often, Math Joy or 日途背单词?

Math Joy ships an update every 3 months, and 日途背单词 every 2 weeks. Most recently, Math Joy was updated on October 24, 2026 and 日途背单词 on October 21, 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.*