KDIAG vs VSensors
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KDIAG
This app offers comprehensive automotive fault detection and OBD functions for various car brands. It provides professional diagnostic services to quickly identify and resolve car issues, making driving safer and smoother for enthusiasts and professionals alike. The app supports 8 languages and is free to use.
- Comprehensive automotive fault detection
- OBD functions
- System fault diagnosis for mainstream brands
- Free to use
- Supports 8 languages
- Professional diagnostic services
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The "KDIAG" automotive diagnostic app will provide you with the most comprehensive automotive fault detection and OBD functions, supporting system fault diagnosis for various mainstream brand cars and providing free use. Whether you are a car enthusiast or a professional technician, you can easily use it. The app also supports 8 languages to meet the needs of users worldwide. The app provides professional automotive diagnostic services that can quickly identify and solve automotive faults. Whether you are at home or on the road, you can easily use our application to ensure that your car remains in optimal condition. Download and experience our car diagnostic app to make your driving safer and smoother! "KDIAG"汽车诊断APP将为您提供最全面的汽车故障检测和OBD功能，支持多种主流品牌汽车的系统故障诊断并免费提供使用，无论您是一位汽车爱好者或专业技师，都能轻松使用。App还支持8种语言，满足全球使用者的使用需求。App提供专业级的汽车诊断服务，能够快速识别和解决汽车故障。无论您是在家里还是在路上，都可以轻松使用我们的应用程式来确保您的汽车保持最佳状态。快来下载并体验我们的汽车诊断APP，让您的驾驶更加安全和顺畅！
VSensors
This application connects to multiple Bluetooth sensors to monitor environmental conditions like illumination, temperature, humidity, and noise. It displays data in maximum/minimum modes, line charts, and tables, with export options available. Requires Vevor Bluetooth Sensor Series and iOS 9.0 or later.
- Connects multiple Bluetooth sensors simultaneously
- Monitors illumination, temperature, humidity, and noise
- Maximum and minimum display modes
- Line chart and data table views
- Data export in various formats
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Application features: - Multiple Bluetooth sensors, such as illumination, temperature and humidity, noise, etc., can be automatically connected at the same time - Includes maximum minimum display mode - Includes line chart view - Includes view of the data table - Data can be exported in a variety of formats Preconditions for using: - Use the Vevor Bluetooth Sensor Series - IOS 9.0 or an updated version is required to support Bluetooth 4.0 and above devices
Screenshots
Verdict
The clearest difference is rating: KDIAG at 3.3 against VSensors's 2.3. KDIAG also leads on review sentiment (31% vs 0%) and update cadence (fortnightly vs every 7 months). VSensors's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.
KDIAG holds the better App Store score, 3.3 against 2.3. Both are backed by a comparable volume of ratings — 20 and 6 respectively. Written reviews point the same way: 31% of KDIAG's written reviews are positive against 0% of VSensors's.
KDIAG ships an update fortnightly, VSensors every 7 months. Both last shipped on October 24, 2026.
| Parameter | KDIAG | VSensors |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (20 ratings) — better | 2.3 (6 ratings) |
| Positive reviews | 30.8% of reviews — better | 0.0% of reviews |
| Number of ratings | 20 — better | 6 |
| Update frequency | Fortnightly — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 74 MB | 43 MB |
| Age rating | 4+ | 17+ |
| Developer | 祖策 谢 | ZHANGZHOU EASTERN INTELLIGENT METER CO., LTD. |
Customer experience
KDIAG
VSensors
In-app purchases
KDIAG
No in-app purchases
VSensors
No in-app purchases
