Comparison

Building Acoustics Partner vs PSI Audio

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Building Acoustics Partner

Features
Read full description

Together with HBK 2255 sound level meter, Building Acoustics Partner is a complete solution for sound insulation measurements. Building Acoustics Partner provides full workflow support for sound insulation testing according to national and international standards, including ISO 16283. Easy and intelligent measurement reuse helps to make your testing as efficient as possible, while instant result calculations and measurement quality indicators give you confidence in your data. Describe site conditions using photo, video, text and voice note annotations. Building Acoustics Partner is also prepared for the most challenging testing situations, with the ability to use serial measurement of individual 1/3 octave bands, markers to exclude unwanted sounds, and more.

About

PSI Audio

Control PSI Audio AVAA units with this official remote app. Access device information, update firmware, and learn about room acoustics. Optimize your low-frequency sound absorption.

Highlights
  • Remote control for AVAA units
  • Access device information (serial number, firmware)
  • Firmware updates
  • Information on acoustics and room modes
  • Optimized absorption settings
Features
Read full description

This is the official app to control PSI Audio AVAA units with the latest firmware. If you are looking for the legacy PSI Audio app (for older units), please search for “PSI Audio – Legacy” in the store. The AVAA is a unique active system to absorb low frequency room modes in a room. This application allows you to remotely control your AVAA(s) through your mobile phone. It also gives you access to all the information relative to your device such as serial number, firmware version, SSID, etc. You will also need this application to get access to the latest firmware and ensure you have all available features and optimised absorption. Furthermore, this application will give you general information on acoustics, room modes and how best to use your AVAA(s).

Screenshots

Building Acoustics Partner4 screens
PSI Audio4 screens

Verdict

The call

Building Acoustics Partner and PSI Audio are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Building Acoustics Partner ships an update every 4 months, PSI Audio every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

ScorecardNo meaningful differences
Building Acoustics Partner versus PSI Audio: the parameters behind the verdict, then further details
ParameterBuilding Acoustics PartnerPSI Audio
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size210 MB47 MB
Age rating4+4+
DeveloperHottinger Bruel & Kjaer A/SRelec SA

In-app purchases

None

Building Acoustics Partner

No in-app purchases

None

PSI Audio

No in-app purchases

Questions

Is Building Acoustics Partner free?
Building Acoustics Partner is free to download, with no in-app purchases.
Is PSI Audio free?
PSI Audio is free to download, with no in-app purchases.
Do Building Acoustics Partner or PSI Audio have ads?
Neither Building Acoustics Partner nor PSI Audio shows ads.
Which is updated more often, Building Acoustics Partner or PSI Audio?
Building Acoustics Partner ships an update every 4 months, and PSI Audio every 3 months. Most recently, Building Acoustics Partner was updated on November 3, 2026 and PSI Audio on November 4, 2026.

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