# RepeatDuck vs 帆船单词

The clearest difference is update cadence: 帆船单词 at every 3 weeks against RepeatDuck's every 2 months. 帆船单词 also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. RepeatDuck sells 3 in-app purchases, starting at $1.99 per month and 帆船单词 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

RepeatDuck ships an update every 2 months, 帆船单词 every 3 weeks. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | RepeatDuck | 帆船单词 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/repeatduck-chinese-master/id6740007643/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 147 MB | 40 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chaojifeng (Xiamen) Network Technology Co., Ltd.](https://appshunter.io/developer/1779974143) | [启 孙](https://appshunter.io/developer/1770894716) |

## What reviewers say

### RepeatDuck

[App page](https://appshunter.io/ios/app/repeatduck-chinese-master/id6740007643)

Master Chinese vocabulary with intelligent flashcards and spaced repetition. Features audio-based memorization, custom card creation, and detailed progress analytics. Learn efficiently with offline access and customizable reading modes.

**Highlights:** Audio-based memorization, Custom flashcard creation, Spaced repetition system, Progress tracking and analytics, Offline mode, Configurable learning languages

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $1.99 | per month |
| Yearly Pro | $9.99 | per year |
| Lifetime Pro | $19.99 | one-time |


### 帆船单词

[App page](https://appshunter.io/ios/app/id6749888034)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day VIP | $7.00 | one-time |
| 30-day VIP | $10.00 | one-time |
| 90-day VIP | $20.00 | one-time |
| 180-day VIP | $35.00 | one-time |
| 365-day VIP | $60.00 | one-time |
| Lifetime VIP membership | $100.00 | one-time |


## Frequently asked questions

### Is RepeatDuck free?

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

### Is 帆船单词 free?

帆船单词 is free to download, with in-app purchases available.

### Do RepeatDuck or 帆船单词 have ads?

Neither RepeatDuck nor 帆船单词 shows ads.

### Which is updated more often, RepeatDuck or 帆船单词?

RepeatDuck ships an update every 2 months, and 帆船单词 every 3 weeks. Most recently, RepeatDuck was updated on October 21, 2026 and 帆船单词 on October 25, 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.*