# 学为贵SAT vs RepeatDuck

The clearest difference is iOS requirement: 学为贵SAT at 9.0 against RepeatDuck's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 学为贵SAT sells 6 one-off in-app purchases 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 学为贵SAT | RepeatDuck |
| --- | --- | --- |
| 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 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 27 MB | 147 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [北京学为贵教育科技有限公司](https://appshunter.io/developer/945632881) | [Chaojifeng (Xiamen) Network Technology Co., Ltd.](https://appshunter.io/developer/1779974143) |

## What reviewers say

### 学为贵SAT

[App page](https://appshunter.io/ios/app/sat/id1171701633)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 68元充值券 | $9.99 | one-time |
| 98元充值券 | $14.99 | one-time |
| 158元充值券 | $22.99 | one-time |
| 228元充值券 | $29.99 | one-time |
| 998元充值券 | $149.99 | one-time |
| 1998元充值券 | $299.99 | one-time |


### 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 学为贵SAT free?

学为贵SAT is free to download, with in-app purchases available.

### Is RepeatDuck free?

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

### Do 学为贵SAT or RepeatDuck have ads?

Neither 学为贵SAT nor RepeatDuck shows ads.

### Which is updated more often, 学为贵SAT or RepeatDuck?

学为贵SAT ships an update every 2 months, and RepeatDuck every 2 months. Most recently, 学为贵SAT was updated on October 6, 2026 and RepeatDuck on October 4, 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.*