# Precision Slim vs JSRing

Precision Slim and JSRing are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Precision Slim ships an update every 4 weeks, JSRing every 3 weeks. The most recent releases landed on September 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Precision Slim | JSRing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.4 (125 ratings)](https://appshunter.io/ios/app/jsring/id6450215258/reviews)** |
| Number of ratings | — | **125** |
| Positive reviews | — | 25.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 57 MB | 133 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [MB 360, LLC](https://appshunter.io/developer/1726635551) | [Shenzhen Jerboss IOT Technology Co., Ltd.](https://appshunter.io/developer/1472510382) |

## What reviewers say

### Precision Slim

[App page](https://appshunter.io/ios/app/precision-slim/id1585651983)

**Features:** macOS Compatibility

**In-app purchases:** none


### JSRing

[App page](https://appshunter.io/ios/app/jsring/id6450215258)

This app records your steps and tracks sleep quality, offering reliable exercise guidance. It acts as a personal exercise manager and connects multiple smart wearable rings.

**Highlights:** Step recording, Sleep quality tracking, Exercise guidance, Personal exercise manager, Connect multiple rings

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Accurate health monitoring
- 👍 Sleek and stylish design
- 💡 Customizable settings
- 🚀 Fast and easy setup

**What reviewers complain about**

- 🐛 Frequent disconnections
- 🔋 Short battery life
- 👎 Unreliable app performance
- 🤯 Confusing setup instructions

**Reported bugs**

- App crashes on launch
- Inaccurate health data
- Unable to reconnect ring after disconnection
- Charging issues

**Requested features**

- Integration with Apple Health
- Ability to disable irrelevant features
- More detailed sleep tracking
- Improved Bluetooth connectivity


## Frequently asked questions

### Is Precision Slim free?

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

### Is JSRing free?

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

### Do Precision Slim or JSRing have ads?

Neither Precision Slim nor JSRing shows ads.

### Which is updated more often, Precision Slim or JSRing?

Precision Slim ships an update every 4 weeks, and JSRing every 3 weeks. Most recently, Precision Slim was updated on September 15, 2026 and JSRing on October 2, 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.*