# 單字庫：最有效的背單字遊戲 vs CantoDuck

The clearest difference is update cadence: CantoDuck at weekly against 單字庫：最有效的背單字遊戲's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 單字庫：最有效的背單字遊戲 sells 3 in-app purchases, starting at $9.99 per month and CantoDuck sells 2 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

單字庫：最有效的背單字遊戲 ships an update every 2 months, CantoDuck weekly. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 單字庫：最有效的背單字遊戲 | CantoDuck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (833 ratings)](https://appshunter.io/ios/app/id6444397780/reviews)** | — |
| Number of ratings | **833** | — |
| Positive reviews | 96.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 529 MB | 308 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [英文庫](https://appshunter.io/developer/1654452547) | [ONNINE LABS PTY LTD](https://appshunter.io/developer/6787587162) |

## What reviewers say

### 單字庫：最有效的背單字遊戲

[App page](https://appshunter.io/ios/app/id6444397780)

Unlock the fun in vocabulary learning with our innovative game app! Seamlessly memorize 10,000 words through engaging activities like fruit planting and turtle nurturing. Personalized review journeys ensure long-term retention while tracking your progress efficiently. Start the coolest vocabulary adventure now, suitable for all ages! [Privacy Policy](https://english.cool/app-privacy-policy/) | [Terms of Use](https:/www.apple.com/legal/internet-services/itunes/dev/stdeula/)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP-月訂閱 | $9.99 | per month |
| VIP-年訂閱 | $69.99 | per year |
| VIP-年訂閱 | $69.99 | per year |


### CantoDuck

[App page](https://appshunter.io/ios/app/cantoduck-learn-cantonese/id6787587160)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CantoDuck Premium (Yearly) | $24.99 | per year |
| CantoDuck Premium (Referral) | $24.99 | per year |


## Frequently asked questions

### Is 單字庫：最有效的背單字遊戲 free?

單字庫：最有效的背單字遊戲 is free to download, with in-app purchases available.

### Is CantoDuck free?

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

### Do 單字庫：最有效的背單字遊戲 or CantoDuck have ads?

Neither 單字庫：最有效的背單字遊戲 nor CantoDuck shows ads.

### Which is updated more often, 單字庫：最有效的背單字遊戲 or CantoDuck?

單字庫：最有效的背單字遊戲 ships an update every 2 months, and CantoDuck weekly. Most recently, 單字庫：最有效的背單字遊戲 was updated on October 17, 2026 and CantoDuck on October 10, 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.*