# JC Ring

> Smart ring health tracker with ECG, sleep, and activity monitoring. (iPhone/iPad app by 立华 赵.)

- Source: https://appshunter.io/ios/app/jc-ring/id6449987678 (this page in markdown: same URL + `.md`)
- Developer: [立华 赵](https://appshunter.io/developer/743608936)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Rating: 3.90/5 from 25 App Store ratings · 24 written reviews indexed
- Age rating: 12+
- Requires: iOS 12.0 · 326 MB
- Languages: American English, Arabic, Czech, Finnish, French (France), German (Germany), Italian, Japanese, Korean, Polish and 8 more
- Released: 2023-07-10
- Data updated: 2026-08-17
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/jc-ring/id6449987678/reviews.md

## What is JC Ring?

JCRing is a multi-functional app integrating smart ring for your daily health tracking. By advanced monitor technology and algorithm, the different health devices tells you wide-ranging body information and provide various assists to help you reach your balance of body and mind.

Besides your daily activity, it can also get deeply into your heart, sleep, workouts and many other vital sings. This app then illustrates all data in beautiful statistic graphs for you to easily access them.

JCRing is packed with useful features when connected with different health devices including: 

• ECG/PPG Heart Monitor
Accurate heart rate measurement with heart rate range analysis. Through research-based algorithm, it shows your HRV, stress level, blood pressure, SpO2, ECG and cardiovascular condition.

• Sleep Monitor
Record detailed daily sleep status including deep sleep, light sleep, and sleeping heart rate, Spo2 etc.

• Activity Tracking
24-hour tracking of your steps, distance, calories-burnt, active-time, and reached daily-goal.

• Data Statistics
Display historical trend of your health data by day, week, month, and year in vivid statistic graphs.

Start a new healthy and active lifestyle with JCRing.

 If you are using an Apple phone, in order to calculate the training consumption, we will receive and send your sports data from Apple's HealthKit with your authorization. To simplify your input process, we read your weight data from HealthKit. At the same time, the training data generated by your JCRing will be synchronized with Apple's HealthKit. Any information obtained through the use of HealthKit, such as weight and heart rate data, will not be shared or sold to any third party, including advertisers and other agents

This application and its associated hardware are intended for wellness and fitness purposes only. They are not a substitute for professional medical equipment and are not designed to diagnose, treat, or prevent any disease. The data and analysis provided by the app are for personal reference only and should not be used as the basis for medical decisions. Always seek a doctor’s advice in addition to using this app and before making any medical decisions.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- ECG/PPG Heart Monitor
- Sleep Monitoring
- Activity Tracking
- Data Statistics
- Heart Rate Range Analysis
- Stress Level Monitoring

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Monthly Subscription | $1.00 | per month |
| Annual Subscription | $9.99 | per year |


## Recent user reviews (10 of 24)

All indexed reviews: https://appshunter.io/ios/app/jc-ring/id6449987678/reviews.md

### 1/5 — Leaf Support

*2026-07-11*

Pathetic support from Leaf and they even don’t have direct support line. Making all conversations via email.
Don’t buy this ring at all

### 1/5 — It’s third party app

*2026-06-18*

It’s third party app… no reply from complaint

### 1/5 — Read before you buy this ring

*2026-01-19*

Know that if you buy this ring and experience any problems at all, your investment is wasted if you can’t get the developers help. 
You will own a dead piece of electronics.

Now, if the developer responds to this quickly and appropriately, you can choose how to proceed with making a purchase through this company.

otherwise currently, I purchased this ring and it will not connect, and that makes it a bad investment and completely worthless!

### 1/5 — VO2 Max

*2026-01-16*

There is no VO2 Max parameter in the health section. Has it been deleted by the app development team?

### 1/5 — Leaf ring

*2025-11-22*

Waste of money 
App also dont belong to leaf

### 1/5 — Removal of Sugar levels

*2025-11-21*

My main purpose of this ring was the its testing capability of sugar levels. This has stopped

### 5/5 — Great ring and connectivity.

*2025-11-03*

I am enjoying this ring and its great connectivity and functionality.  It connects to  a lot of health apps.  In the last week, when checking blood glucose, the initial report says LOW but the weekly chart is showing marginal.  Is there a way to correct this?

### 4/5 — Blood glucose

*2025-10-17*

No blood glucose levels after update. Please advise.

### 4/5 — Glucose risk assessment is not appearing

*2025-10-03*

After recent update, Glucose risk assessment is not showing up. Does it have different navigation?

### 5/5 — Exercise

*2025-07-23*

I love this ring, but you need to add swimming to the exercises.

## Frequently asked questions about JC Ring

### What health metrics does JC Ring track?

JC Ring tracks a wide range of health metrics including ECG/PPG heart rate, heart rate variability (HRV), stress levels, blood pressure, SpO2, sleep stages (deep, light), sleeping heart rate, sleeping SpO2, steps, distance, calories burned, and active time.

### How does JC Ring present health data?

JC Ring displays historical health data trends in beautiful, vivid statistic graphs. Users can view their data by day, week, month, and year for easy access and understanding.

### Does JC Ring work with Apple HealthKit?

Yes, JC Ring integrates with Apple's HealthKit to calculate training consumption and simplify input by reading weight data. Training data generated by JC Ring is also synchronized with HealthKit. HealthKit data is not shared with third parties.

### What are the subscription options for JC Ring?

JC Ring offers a Monthly Subscription for $1.00 and an Annual Subscription for $9.99. These subscriptions likely unlock premium features or advanced analytics.

### Is JC Ring a medical device?

No, JC Ring and its associated hardware are intended for wellness and fitness purposes only. They are not a substitute for professional medical equipment and are not designed to diagnose, treat, or prevent any disease. Data is for personal reference only.

### What devices does JC Ring support?

JC Ring currently supports iPhone and iPod devices. The app requires a compatible smart ring for its full functionality.

### How often is JC Ring updated?

The latest version of JC Ring is 1.10.17, and it was last updated on December 9, 2025. This indicates a relatively active development cycle.

### What is the user sentiment for JC Ring?

JC Ring has a rating of 4.2 stars from 26 ratings, suggesting generally positive user sentiment. Users appreciate its comprehensive health tracking capabilities.

## Version history (last 5 releases)

### 1.10.17 — 2025-12-09

Fix bugs, prompt user experience and international language adaptation

### 1.10.16 — 2025-12-05

Fix bugs, prompt user experience and international language adaptation

### 1.10.15 — 2025-11-19

Fix bugs, prompt user experience and international language adaptation

### 1.10.14 — 2025-11-14

Fix bugs, prompt user experience and international language adaptation

### 1.10.13 — 2025-11-03

Fix bugs, prompt user experience and international language adaptation

## Apps similar to JC Ring

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [RingConn](https://appshunter.io/ios/app/ringconn/id6444470583) | 3.6 (801) | Free | Health & Fitness |
| [JRing](https://appshunter.io/ios/app/jring/id6502148807) | 2.3 (91) | Free | Health & Fitness |
| [SmartHealth](https://appshunter.io/ios/app/smarthealth/id1450500729) | 3.0 (2,095) | Free | Health & Fitness |
| [Health Ring.](https://appshunter.io/ios/app/health-ring/id6448140130) | 3.5 (243) | Free | Health & Fitness |
| [iCardio - Heart Rate Tracker](https://appshunter.io/ios/app/icardio-heart-rate-tracker/id6743428875) | 4.4 (2,308) | Free | Health & Fitness |
| [SRing](https://appshunter.io/ios/app/sring/id6472034068) | 1.7 (3) | Free | Health & Fitness |

## More apps by 立华 赵

- [HappySleep](https://appshunter.io/ios/app/happysleep/id1319645016)
- [Heart Beat Expert](https://appshunter.io/ios/app/heart-beat-expert/id1322290420)
- [BabyThermo](https://appshunter.io/ios/app/babythermo/id1378898800)
- [Teethcare](https://appshunter.io/ios/app/teethcare/id1385285553)
- [Glister Smart](https://appshunter.io/ios/app/glister-smart/id1435143755)
- [Walkfun](https://appshunter.io/ios/app/walkfun/id1447998179)

All apps by 立华 赵: https://appshunter.io/developer/743608936

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*