# Watch V9C vs Goniometer

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.

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.

## The numbers

| Metric | Watch V9C | Goniometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/watch-v9c/id6444352186/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/goniometer/id6736895084/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 80 MB | 29 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [SKG Health Technologies Co., Ltd.](https://appshunter.io/developer/928994499) | [Guilin GemRed Sensor Technology Co., Ltd.](https://appshunter.io/developer/1279222567) |

## What reviewers say

### Watch V9C

[App page](https://appshunter.io/ios/app/watch-v9c/id6444352186)

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.

**Highlights:** HealthKit integration, Real-time health monitoring, Exercise tracking, Sleep tracking, Bracelet reminders, Device search, Factory reset

**Features:** macOS Compatibility

**In-app purchases:** none


### Goniometer

[App page](https://appshunter.io/ios/app/goniometer/id6736895084)

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.

**Highlights:** Bluetooth connectivity with digital goniometer, Record joint range of motion, Track personal rehabilitation status, Monitor joint movement progress, Easy data recording

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Watch V9C free?

Watch V9C is free to download, with no in-app purchases.

### Is Goniometer free?

Goniometer is free to download, with no in-app purchases.

### Which has better reviews, Watch V9C or Goniometer?

Watch V9C is rated higher. Watch V9C averages 3.8 out of 5 from 4 ratings, while Goniometer averages 1.0 from 2 ratings.

### Do Watch V9C or Goniometer have ads?

Neither Watch V9C nor Goniometer shows ads.

### Which is updated more often, Watch V9C or Goniometer?

Watch V9C ships an update every 2 months, and Goniometer monthly. Most recently, Watch V9C was updated on September 13, 2026 and Goniometer on July 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*