# CZI Sound vs Austin Sensing

The clearest difference is update cadence: Austin Sensing at every 2 weeks against CZI Sound's every 8 months. CZI Sound's advantage is iOS requirement (13.0 vs 16.4). 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.

CZI Sound ships an update every 8 months, Austin Sensing every 2 weeks. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | CZI Sound | Austin Sensing |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Size | 64 MB | 91 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Chengzhi Intelligent Machine Technology Co., Ltd.](https://appshunter.io/developer/1675437495) | [Oureon Technologies](https://appshunter.io/developer/1896448756) |

## What reviewers say

### CZI Sound

[App page](https://appshunter.io/ios/app/czi-sound/id6446013579)

**Features:** macOS Compatibility

**In-app purchases:** none


### Austin Sensing

[App page](https://appshunter.io/ios/app/austin-sensing/id6767263457)

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

**In-app purchases:** none


## Frequently asked questions

### Is CZI Sound free?

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

### Is Austin Sensing free?

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

### Do CZI Sound or Austin Sensing have ads?

Neither CZI Sound nor Austin Sensing shows ads.

### Which is updated more often, CZI Sound or Austin Sensing?

CZI Sound ships an update every 8 months, and Austin Sensing every 2 weeks. Most recently, CZI Sound was updated on October 30, 2026 and Austin Sensing on October 28, 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.*