# 01dB Connect vs Building Acoustics Pro

The clearest difference is update cadence: Building Acoustics Pro at every 2 weeks against 01dB Connect's every 8 months. 01dB Connect's advantage is iOS requirement (9.0 vs 15.6). 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.

01dB Connect ships an update every 8 months, Building Acoustics Pro every 2 weeks. The most recent releases landed on October 28, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 01dB Connect | Building Acoustics Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Size | 42 MB | 68 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [Svantek Sp. z o.o.](https://appshunter.io/developer/1112855123) |

## What reviewers say

### 01dB Connect

[App page](https://appshunter.io/ios/app/01db-connect/id1119115373)

**Features:** macOS Compatibility

**In-app purchases:** none


### Building Acoustics Pro

[App page](https://appshunter.io/ios/app/building-acoustics-pro/id1670904136)

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

**In-app purchases:** none


## Frequently asked questions

### Is 01dB Connect free?

01dB Connect is free to download, with no in-app purchases.

### Is Building Acoustics Pro free?

Building Acoustics Pro is free to download, with no in-app purchases.

### Do 01dB Connect or Building Acoustics Pro have ads?

Neither 01dB Connect nor Building Acoustics Pro shows ads.

### Which is updated more often, 01dB Connect or Building Acoustics Pro?

01dB Connect ships an update every 8 months, and Building Acoustics Pro every 2 weeks. Most recently, 01dB Connect was updated on October 28, 2026 and Building Acoustics Pro on October 27, 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.*