# Building Acoustics Partner vs AcoustiCalc

The clearest difference is price: Building Acoustics Partner at Free against AcoustiCalc's $3.99. Building Acoustics Partner also leads on iOS requirement (15.0 vs 17). AcoustiCalc's advantage is update cadence (daily vs every 4 months). On ads, in-app purchases and device support there is nothing between them.

Building Acoustics Partner is free to download; AcoustiCalc costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Building Acoustics Partner ships an update every 4 months, AcoustiCalc daily. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Building Acoustics Partner | AcoustiCalc |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Size | 160 MB | 43 MB |
| Requires iOS | **15.0** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hottinger Bruel & Kjaer A/S](https://appshunter.io/developer/622515894) | [TRIMECH Dhaker](https://appshunter.io/developer/1832697893) |

## What reviewers say

### Building Acoustics Partner

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

**Features:** macOS Compatibility

**In-app purchases:** none


### AcoustiCalc

[App page](https://appshunter.io/ios/app/acousticalc/id6764106645)

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

**In-app purchases:** none


## Frequently asked questions

### Is Building Acoustics Partner free?

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

### Is AcoustiCalc free?

AcoustiCalc costs $3.99, with no in-app purchases.

### Do Building Acoustics Partner or AcoustiCalc have ads?

Neither Building Acoustics Partner nor AcoustiCalc shows ads.

### Which is updated more often, Building Acoustics Partner or AcoustiCalc?

Building Acoustics Partner ships an update every 4 months, and AcoustiCalc daily. Most recently, Building Acoustics Partner was updated on October 10, 2026 and AcoustiCalc on October 8, 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.*