# KKDKKD vs HJ Edu APP

The clearest difference is update cadence: KKDKKD at monthly against HJ Edu APP's every 12 months. KKDKKD also leads on iOS requirement (13.4 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

KKDKKD ships an update monthly, HJ Edu APP every 12 months. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | KKDKKD | HJ Edu APP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/kkdkkd/id1474465767/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 12 months |
| Monetization | Free | — |
| Size | 112 MB | 118 MB |
| Requires iOS | **13.4** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Tianxing Innovation Technology Co., Ltd.](https://appshunter.io/developer/1457670318) | [Invent Educare](https://appshunter.io/developer/1675732592) |

## What reviewers say

### 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


### HJ Edu APP

[App page](https://appshunter.io/ios/app/hj-edu-app/id6477400620)

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

**In-app purchases:** none


## Frequently asked questions

### Is KKDKKD free?

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

### Is HJ Edu APP free?

HJ Edu APP is free to download, with no in-app purchases.

### Do KKDKKD or HJ Edu APP have ads?

Neither KKDKKD nor HJ Edu APP shows ads.

### Which is updated more often, KKDKKD or HJ Edu APP?

KKDKKD ships an update monthly, and HJ Edu APP every 12 months. Most recently, KKDKKD was updated on October 24, 2026 and HJ Edu APP on October 5, 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.*