# 天才鸭同步单词 vs OKmath英语

The clearest difference is rating: OKmath英语 at 4.6 against 天才鸭同步单词's 3.9. OKmath英语 also leads on in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.1). 天才鸭同步单词's advantage is update cadence (every 2 days vs every 2 weeks) and review sentiment (100% vs 87%). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 天才鸭同步单词 sells 4 one-off in-app purchases. OKmath英语 asks for nothing beyond the download.

OKmath英语 holds the better App Store score, 4.6 against 3.9. Both are backed by a comparable volume of ratings — 7 and 17 respectively. Written reviews complicate that: 100% of 天才鸭同步单词's written reviews are positive against 87% of OKmath英语's, so the app with the better star average is not the one people write more warmly about.

天才鸭同步单词 ships an update every 2 days, OKmath英语 every 2 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | 天才鸭同步单词 | OKmath英语 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/id6744206547/reviews) | **[4.6 (17 ratings)](https://appshunter.io/ios/app/okmath/id6757459128/reviews)** |
| Number of ratings | 7 | **17** |
| Positive reviews | **100.0% of reviews** | 86.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | — | Free |
| Size | 169 MB | 95 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Progressive Youth Technology Development Co., Ltd.](https://appshunter.io/developer/1792152722) | [北京橙旭园网络技术有限公司](https://appshunter.io/developer/1420996184) |

## What reviewers say

### 天才鸭同步单词

[App page](https://appshunter.io/ios/app/id6744206547)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年卡VIP | $9.99 | one-time |
| 三年卡VIP | $19.99 | one-time |
| 永久VIP | $22.99 | one-time |
| 天才鸭题霸优学联合会员 | $29.99 | one-time |


### OKmath英语

[App page](https://appshunter.io/ios/app/okmath/id6757459128)

This app offers free English learning for young Chinese children. It focuses on early English education through engaging content and activities designed for a child's development.

**Highlights:** Free English启蒙 (early education), Designed for Chinese children, Engaging content, Focus on early development

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

**In-app purchases:** none


## Frequently asked questions

### Is 天才鸭同步单词 free?

天才鸭同步单词 is free to download, with in-app purchases available.

### Is OKmath英语 free?

OKmath英语 is free to download, with no in-app purchases.

### Which has better reviews, 天才鸭同步单词 or OKmath英语?

OKmath英语 is rated higher. 天才鸭同步单词 averages 3.9 out of 5 from 7 ratings, while OKmath英语 averages 4.6 from 17 ratings.

### Do 天才鸭同步单词 or OKmath英语 have ads?

Neither 天才鸭同步单词 nor OKmath英语 shows ads.

### Which is updated more often, 天才鸭同步单词 or OKmath英语?

天才鸭同步单词 ships an update every 2 days, and OKmath英语 every 2 weeks. Most recently, 天才鸭同步单词 was updated on September 30, 2026 and OKmath英语 on October 1, 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.*