Watch V9C vs Goniometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Goniometer
Easily record joint motion range using Bluetooth connection with a digital goniometer. Track personal rehabilitation training progress for joint movement. Remember to consult a doctor before making medical decisions.
- Bluetooth connectivity with digital goniometer
- Record joint range of motion
- Track personal rehabilitation status
- Monitor joint movement progress
- Easy data recording
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The app use bluetooth connect with GR digital goniometer to record the angle range of joint motion easily. It can track record personal rehabilitation training status of joint motion. APP可通过蓝牙与GR数显角度尺连接并记录关节活动度的测量数据，帮助追踪个人康复训练情况。多一份准备，少一分担心，精准记录关节活动康复进度。 Disclaimer reminding：users to seek a doctor’s advice in addition to using this app and before making any medical decisions. 免责声明提醒：用户除了使用此应用程序外，在做出任何医疗决定之前，还应寻求医生的建议。
Screenshots
Verdict
The clearest difference is review sentiment: Watch V9C at 50% against Goniometer's 0%. Watch V9C also leads on rating (3.8 vs 1.0). 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.
Watch V9C holds the better App Store score, 3.8 against 1.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively. Written reviews point the same way: 50% of Watch V9C's written reviews are positive against 0% of Goniometer's.
Watch V9C ships an update every 2 months, Goniometer monthly. The most recent releases landed on September 13, 2026 and July 8, 2026 respectively.
| Parameter | Watch V9C | Goniometer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | 1.0 (2 ratings) |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 — better | 2 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 80 MB | 29 MB |
| Age rating | 12+ | 4+ |
| Developer | SKG Health Technologies Co., Ltd. | Guilin GemRed Sensor Technology Co., Ltd. |
Customer experience
Watch V9C
Goniometer
In-app purchases
Watch V9C
No in-app purchases
Goniometer
No in-app purchases
