# 核桃HD vs KKDKKD

The clearest difference is rating: KKDKKD at 4.3 against 核桃HD's 3.9. KKDKKD also leads on device support (3 vs 1). 核桃HD's advantage is ratings volume (27 vs 4) and iOS requirement (11.0 vs 13.4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KKDKKD holds the better App Store score, 4.3 against 3.9. That said, the two scores are not equally well evidenced: 核桃HD has 27 ratings behind it against 4, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | 核桃HD | KKDKKD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (27 ratings)](https://appshunter.io/ios/app/hd/id1439180094/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/kkdkkd/id1474465767/reviews)** |
| Number of ratings | **27** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 464 MB | 112 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Beijing Smart Walnut Learning Technology Co., Ltd.](https://appshunter.io/developer/1439180093) | [Tianxing Innovation Technology Co., Ltd.](https://appshunter.io/developer/1457670318) |

## What reviewers say

### 核桃HD

[App page](https://appshunter.io/ios/app/hd/id1439180094)

This educational app teaches children aged 6-12 computer science fundamentals through engaging online courses. It aligns with US computer science standards and incorporates motivational design principles to enhance learning. The curriculum also integrates content from other subjects, aiming to boost overall academic performance.

**Highlights:** 少儿编程课程, CSTA标准对标, ARCS动机设计模型, 跨学科内容整合, 提升语数外成绩, 在线教育平台

**In-app purchases:** none


### KKDKKD

[App page](https://appshunter.io/ios/app/kkdkkd/id1474465767)

Learn programming through interactive building blocks and gamified challenges. This app guides you through constructing and coding intelligent models, fostering interest in STEM concepts with engaging levels and rewards.

**Highlights:** Gamified programming learning, Digital building instructions, Graphical programming interface, Control building block models, Unlock medals and rewards, Gravity sensing mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 核桃HD free?

核桃HD is free to download, with no in-app purchases.

### Is KKDKKD free?

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

### Which has better reviews, 核桃HD or KKDKKD?

KKDKKD is rated higher. 核桃HD averages 3.9 out of 5 from 27 ratings, while KKDKKD averages 4.3 from 4 ratings.

### Do 核桃HD or KKDKKD have ads?

Neither 核桃HD nor KKDKKD shows ads.

### Which is updated more often, 核桃HD or KKDKKD?

核桃HD ships an update monthly, and KKDKKD monthly. Most recently, 核桃HD was updated on October 7, 2026 and KKDKKD on October 15, 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.*