# CapWords vs RepeatDuck

The clearest difference is update cadence: CapWords at every 5 days against RepeatDuck's every 2 months. CapWords also leads on ratings volume (614 vs 1) and chart position (#200 vs unranked). RepeatDuck's advantage is rating (5.0 vs 4.7) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. CapWords sells 6 in-app purchases, starting at $4.99 per month and RepeatDuck sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

RepeatDuck holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CapWords has 614 ratings behind it against 1, so its average is the more settled of the two.

CapWords ships an update every 5 days, RepeatDuck every 2 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | CapWords | RepeatDuck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (614 ratings)](https://appshunter.io/ios/app/capwords-ai-language-tutor/id6738896465/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/repeatduck-chinese-master/id6740007643/reviews)** |
| Number of ratings | **614** | 1 |
| Positive reviews | 72.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#200** | — |
| Size | 265 MB | 147 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HappyPlan Tech](https://appshunter.io/developer/1631297811) | [Chaojifeng (Xiamen) Network Technology Co., Ltd.](https://appshunter.io/developer/1779974143) |

## What reviewers say

### CapWords

[App page](https://appshunter.io/ios/app/capwords-ai-language-tutor/id6738896465)

**Currently charting:** #200 Top Free · Education (US App Store)

Capture words from real life using your camera and instantly create smart flashcards. AI provides definitions with context, and a spaced repetition system helps you remember them. Perfect for students, travelers, and professionals looking to expand their vocabulary.

**Highlights:** AI text recognition from photos, AI-powered definitions with context, Photo-linked vocabulary flashcards, Intelligent spaced repetition review, Progress tracking, Offline word bank, Multiple language support

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium-Monthly-b | $4.99 | per month |
| Premium-Monthly | $5.99 | per month |
| Premium-Yearly | $19.99 | per year |
| Premium-Yearly | $29.99 | per year |
| Premium-Yearly-Promo | $29.99 | per year |
| Premium-Yearly-Promo-b | $29.99 | per year |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Efficient flashcard creation
- 🔊 Helpful audio pronunciations
- 💡 Useful sample sentences

**What reviewers complain about**

- 🚫 Lack of support for certain languages (e.g., Hebrew, Arabic)
- 💡 Desire for dark mode option
- 🔒 Concerns about data privacy and Chinese ownership

**Reported bugs**

- Some website links not working properly

**Requested features**

- Add ability to import existing flashcards
- Integrate with other language learning apps
- Provide option to change native language
- Add home screen widgets
- Expand object description capabilities


### 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 |


## Frequently asked questions

### Is CapWords free?

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

### Is RepeatDuck free?

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

### Which has better reviews, CapWords or RepeatDuck?

RepeatDuck is rated higher. CapWords averages 4.7 out of 5 from 614 ratings, while RepeatDuck averages 5.0 from 1 ratings.

### Do CapWords or RepeatDuck have ads?

Neither CapWords nor RepeatDuck shows ads.

### Which is updated more often, CapWords or RepeatDuck?

CapWords ships an update every 5 days, and RepeatDuck every 2 months. Most recently, CapWords was updated on October 25, 2026 and RepeatDuck 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.*