Yefit vs Watch V9C
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Yefit
Monitor your smart wearable devices in real-time, tracking exercise, personal health data, and movement. Set health goals, receive personalized guidance, and control device functions like music and weather. Integrates with HealthKit for a comprehensive health profile.
- Real-time data monitoring
- Personalized health management
- Intelligent exercise guidance
- Device control (music, weather)
- Sleep monitoring
- HealthKit integration
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1、 Real time data monitoring Yefit App can connect and monitor your smart wearable devices in real time, collect and display your exercise data and personal sign data. Whether you are running or working out, the app can track your movement trajectory, steps, distance, calorie consumption, and other key indicators in real time, and synchronously display your health data such as heart rate, blood pressure, and blood oxygen. 2、 The personalized health management app provides personalized health management functions, allowing you to comprehensively understand your health status. You can set health goals such as daily steps, calorie consumption, etc., and track and record them through the app. 3、 The intelligent exercise guidance app not only records your exercise data, but also provides personalized exercise guidance based on your exercise habits and physical condition, helping you achieve your exercise goals more effectively and improve exercise effectiveness. 4、 Intelligent device control It has other practical functions, such as music control, weather forecast, sleep monitoring, etc. These features can bring more convenience and fun to your sports and life. 【HealthKit Integration】 By integrating with HealthKit, your exercise data - including steps and calories - will be securely obtained, aiming to present you with a more comprehensive exercise profile. We promise that all data processing strictly complies with Apple's privacy policy to ensure the security of your information.
Watch V9C
This utility app connects to a Bluetooth bracelet to track and display real-time health and exercise data, including heart rate, sleep, and activity. It also offers device management features like reminders and factory resets, and integrates with HealthKit.
- HealthKit integration
- Real-time health monitoring
- Exercise tracking
- Sleep tracking
- Bracelet reminders
- Device search
- Factory reset
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Watch V9C app integrates HealthKit to read and write some data in the Health app. Watch V9C is mainly used to connect the Bluetooth bracelet to assist users. Record and display the user's exercise and health status in real time, including information such as heart rate, sleep and exercise. At the same time, it provides users with basic settings such as bracelet reminders, device search, and factory reset. 【Warm Prompt 】 Running track function will continue to use GPS positioning service, switch to the background can still keep running track record, compared to other operation consumes more electricity, will to a certain extent, affect the battery life. Note: Continued use of GPS running in the background can dramatically decrease 'life.
Screenshots
Verdict
The clearest difference is rating: Yefit at 5.0 against Watch V9C's 3.8. Yefit also leads on update cadence (every 3 weeks vs every 2 months). On price, ratings volume, ads and in-app purchases 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.
Yefit holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
Yefit ships an update every 3 weeks, Watch V9C every 2 months. The most recent releases landed on September 29, 2026 and October 1, 2026 respectively.
| Parameter | Yefit | Watch V9C |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 3.8 (4 ratings) |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 141 MB | 80 MB |
| Age rating | 17+ | 12+ |
| Developer | Shenzhen TJD Information Technology Co. LTD | SKG Health Technologies Co., Ltd. |
Customer experience
Yefit
Watch V9C
In-app purchases
Yefit
No in-app purchases
Watch V9C
No in-app purchases









