# Joint Active Systems vs MOTIONrelax

The clearest difference is update cadence: MOTIONrelax at every 12 months against Joint Active Systems's every 33 months. 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, MOTIONrelax every 12 months. The most recent releases landed on January 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Joint Active Systems | MOTIONrelax |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 12 months** |
| Size | 2 MB | 17 MB |
| Requires iOS | 12.4 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bonutti Technologies](https://appshunter.io/developer/911384806) | [LOGICDATA Electronic & Software Entwicklungs GmbH](https://appshunter.io/developer/482335102) |

## What reviewers say

### Joint Active Systems

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

**Features:** macOS Compatibility

**In-app purchases:** none


### MOTIONrelax

[App page](https://appshunter.io/ios/app/motionrelax/id6463143961)

**Features:** macOS Compatibility

**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 MOTIONrelax free?

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

### Do Joint Active Systems or MOTIONrelax have ads?

Neither Joint Active Systems nor MOTIONrelax shows ads.

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

Joint Active Systems ships an update every 33 months, and MOTIONrelax every 12 months. Most recently, Joint Active Systems was updated on January 1, 2026 and MOTIONrelax on October 3, 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.*