# echOpen ON vs CHU Connect Pro

The clearest difference is update cadence: CHU Connect Pro at every 2 weeks against echOpen ON's every 4 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.

echOpen ON ships an update every 4 months, CHU Connect Pro every 2 weeks. The most recent releases landed on October 27, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | echOpen ON | CHU Connect Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 67 MB | 2 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [echopen factory](https://appshunter.io/developer/1530808488) | [CHU NANTES](https://appshunter.io/developer/1510547261) |

## What reviewers say

### echOpen ON

[App page](https://appshunter.io/ios/app/echopen-on/id1664469384)

**In-app purchases:** none


### CHU Connect Pro

[App page](https://appshunter.io/ios/app/chu-connect-pro/id6449931273)

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

**In-app purchases:** none


## Frequently asked questions

### Is echOpen ON free?

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

### Is CHU Connect Pro free?

CHU Connect Pro is free to download, with no in-app purchases.

### Do echOpen ON or CHU Connect Pro have ads?

Neither echOpen ON nor CHU Connect Pro shows ads.

### Which is updated more often, echOpen ON or CHU Connect Pro?

echOpen ON ships an update every 4 months, and CHU Connect Pro every 2 weeks. Most recently, echOpen ON was updated on October 27, 2026 and CHU Connect Pro on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*