# 01dB Connect vs Building Acoustics Partner

The clearest difference is update cadence: Building Acoustics Partner at every 4 months against 01dB Connect's every 8 months. 01dB Connect's advantage is iOS requirement (9.0 vs 15.0). 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 Partner every 4 months. The most recent releases landed on October 17, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 01dB Connect | Building Acoustics Partner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 months** |
| Size | 42 MB | 210 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ACOEM Group](https://appshunter.io/developer/1495816959) | [Hottinger Bruel & Kjaer A/S](https://appshunter.io/developer/622515894) |

## What reviewers say

### 01dB Connect

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Building Acoustics Partner

[App page](https://appshunter.io/ios/app/building-acoustics-partner/id1487977751)

**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 Partner free?

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

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

Neither 01dB Connect nor Building Acoustics Partner shows ads.

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

01dB Connect ships an update every 8 months, and Building Acoustics Partner every 4 months. Most recently, 01dB Connect was updated on October 17, 2026 and Building Acoustics Partner on October 26, 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.*