# JC Ring vs Plank Labs

The clearest difference is device support: JC Ring at 2 against Plank Labs's —. JC Ring also leads on iOS requirement (12.0 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. JC Ring sells 2 in-app purchases, starting at $1.00 per month and Plank Labs sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | JC Ring | Plank Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (25 ratings)](https://appshunter.io/ios/app/jc-ring/id6449987678/reviews)** | — |
| Number of ratings | **25** | — |
| Positive reviews | 45.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 326 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 12+ | 4+ |
| Developer | [立华 赵](https://appshunter.io/developer/743608936) | [Justin van Wijngaarden](https://appshunter.io/developer/1881377162) |

## What reviewers say

### JC Ring

[App page](https://appshunter.io/ios/app/jc-ring/id6449987678)

This app integrates with a smart ring to provide comprehensive daily health tracking. It monitors vital signs like heart rate, sleep patterns, and activity levels, presenting data in clear statistical graphs to help users achieve a balanced lifestyle.

**Highlights:** ECG/PPG Heart Monitor, Sleep Monitoring, Activity Tracking, Data Statistics, Heart Rate Range Analysis, Stress Level Monitoring

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

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


### Plank Labs

[App page](https://appshunter.io/ios/app/plank-labs/id6760829166)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plank Labs | $3.99 | one-time |


## Frequently asked questions

### Is JC Ring free?

JC Ring is free to download, with in-app purchases available.

### Is Plank Labs free?

Plank Labs is free to download, with in-app purchases available.

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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.*