# Joint Active Systems vs Da Rings

The clearest difference is update cadence: Da Rings at every 3 weeks against Joint Active Systems's every 33 months. Da Rings also leads on chart position (#148 vs unranked). On price, ads, in-app purchases and device support there is nothing between them.

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

Joint Active Systems ships an update every 33 months, Da Rings every 3 weeks. The most recent releases landed on January 1, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Joint Active Systems | Da Rings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.6 (165 ratings)](https://appshunter.io/ios/app/da-rings/id6443980625/reviews)** |
| Number of ratings | — | **165** |
| Positive reviews | — | 18.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 3 weeks** |
| Monetization | — | Free |
| Best chart rank | — | **#148** |
| Size | 2 MB | 85 MB |
| Requires iOS | **12.4** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bonutti Technologies](https://appshunter.io/developer/911384806) | [MO YOUNG LIMITED](https://appshunter.io/developer/1593135244) |

## What reviewers say

### Joint Active Systems

[App page](https://appshunter.io/ios/app/joint-active-systems/id1086503051)

**Features:** macOS Compatibility

**In-app purchases:** none


### Da Rings

[App page](https://appshunter.io/ios/app/da-rings/id6443980625)

**Currently charting:** #148 Top Free · Health & Fitness (US App Store)

This app offers detailed motion recording, sleep tracking, and exercise analysis. It encourages a healthy lifestyle by connecting with smart devices and sharing data with Apple Health.

**Highlights:** Motion recording, Sleep tracking, Exercise analysis, Smart device connection, Apple Health integration, Personal reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is Joint Active Systems free?

Joint Active Systems is free to download, with no in-app purchases.

### Is Da Rings free?

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

### Do Joint Active Systems or Da Rings have ads?

Neither Joint Active Systems nor Da Rings shows ads.

### Which is updated more often, Joint Active Systems or Da Rings?

Joint Active Systems ships an update every 33 months, and Da Rings every 3 weeks. Most recently, Joint Active Systems was updated on January 1, 2026 and Da Rings on October 14, 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.*