HAPPY BUILD vs 恺宇 KAIYU
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HAPPY BUILD
Control Xinyu Bluetooth toy cars with your mobile device. Offers multiple control methods like buttons, gyroscope, voice commands, and programming for varied play experiences.
- Bluetooth connectivity
- Multiple control modes
- Gyroscope control
- Voice command control
- Action programming
Read full descriptionHide full description
This is the remote control App software for Xinyu Bluetooth products. Connect with the cool bluetooth toy cars of Xinyu various series through data bluetooth and audio bluetooth. It contains a variety of different styles of control methods, including: conventional button remote control, gyroscope re-sensing remote control, line drawing remote control, voice command control, and action programming control modes, allowing you to experience different fun!
恺宇 KAIYU
This app offers diverse control methods for an engaging experience. Explore options like button remotes, gyroscope control, route drawing, voice commands, and custom graphical programming.
- Multiple control styles
- Button remote
- Gyroscope control
- Route drawing
- Voice command control
- Custom graphical programming
Read full descriptionHide full description
恺宇编程。其包含了多种风格各异的控制方式，分别为:常规按键遥控器、陀螺水平仪遥控、路线轨迹绘制遥控、语音指令遥控以及自定义图形编程的模式，让您体验不一样的乐趣!
Screenshots
Verdict
The clearest difference is review sentiment: 恺宇 KAIYU at 67% against HAPPY BUILD's 17%. 恺宇 KAIYU also leads on rating (4.0 vs 3.0). On price, ratings volume, update cadence and ads there is nothing between them.
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.
恺宇 KAIYU holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 17% of HAPPY BUILD's written reviews are positive against 67% of 恺宇 KAIYU's.
HAPPY BUILD ships an update every 4 weeks, 恺宇 KAIYU fortnightly. The most recent releases landed on October 17, 2026 and October 8, 2026 respectively.
| Parameter | HAPPY BUILD | 恺宇 KAIYU |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (7 ratings) | 4.0 (4 ratings) — better |
| Positive reviews | 16.7% of reviews | 66.7% of reviews — better |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details — not scored | ||
| Size | 375 MB | 233 MB |
| Age rating | 4+ | 4+ |
| Developer | 睦彬 王 | 植川 马 |
Customer experience
HAPPY BUILD
恺宇 KAIYU
In-app purchases
HAPPY BUILD
No in-app purchases
恺宇 KAIYU
No in-app purchases
