QY STEM vs 快乐搭
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QY STEM
This offline programming application is designed for competitive programming. It offers a dedicated environment for users to practice and prepare for coding competitions.
- Offline programming environment
- Competition preparation
- Dedicated coding practice
- Supports multiple devices
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QY-STEM is a dedicated offline programming APP for competition
快乐搭
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快乐搭，用手创造快乐； 精品课程：观看应用场景，学习拼搭步骤，拓展思维、自定义拼搭，愉快的学习日常知识； 趣味课程：3D搭建图纸； 控制：蓝牙连接积木上的控制器来控制； 编程：通过图形块来控制；
Screenshots
Verdict
QY STEM and 快乐搭 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | QY STEM | 快乐搭 |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 137 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | 广东群宇互动科技有限公司 | 福建佰育科技 |
In-app purchases
QY STEM
No in-app purchases
快乐搭
No in-app purchases
