Comparison

Decibel Meter Plus vs IQ Bau

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

Head to head
About

Decibel Meter Plus

Measure ambient sound levels and understand their impact on hearing. This app provides real-time decibel readings, exposure time guidelines, and information on noise-induced hearing loss. It helps you identify loud environments and learn how to protect your hearing.

Highlights
  • Measure sound levels
  • Display average, peak, and max values
  • Plotted history of average values
  • Information on NIHL
  • Decibel exposure time guidelines
  • Calibrate measurements
  • Record and export data
Features
Read full description

Decibel Meter helps you quickly check the sound level around you using your device’s built-in microphone. Open the app and instantly see the current sound level in decibels. You can use it to get a general idea of everyday noise levels at home, in the office, in classrooms, outdoors, or in other environments. Key Features: • Real-time sound level measurement • Clear decibel display • Average, peak, and maximum values • Simple visual meter and history graph • Calibration adjustment for different devices and environments • Easy-to-use interface for quick checks • Support for iPhone and iPad • Multiple language support • In-app Support for feedback and questions Please note: Decibel readings may vary depending on your device microphone, case, distance from the sound source, background noise, and calibration settings. This app is designed for general reference and everyday use. It is not a replacement for a certified professional sound level meter. Download Decibel Meter and check the sound around you with ease.

About

IQ Bau

Features
Read full description

Neuigkeiten Mitteilungen zu Ihrem Haus und Mietverhältnis direkt über unsere App. Sollten sich Notrufnummern verändern oder wir Ihnen Wartungstermine mitteilen, erhalten Sie die Nachricht direkt auf Ihr Smartphone. Schäden und Anliegen digital melden Als Mieter oder Eigentümer können Sie Schäden oder Anliegen direkt mit Fotos über unsere App melden. Ihre Anfragen stehen unseren Mitarbeiten dann zur Verfügung und können auch an Handwerksbetriebe weitergeleitet werden. Aktueller Einblick über den Bearbeitungsstand Neuigkeiten, Statusänderungen oder Terminvorschläge zu Ihren Vorgängen erhalten Sie standardisiert über die App als Push-Notification. Dokumente Zugriff auf Dokumente Umgebung Informieren Sie sich z.B. über Geschäfte, Ärzte, Erstatten und über die Öffnungszeiten in Ihrer unmittelbarer Umgebung. FAQ und Notrufnummern Haben Sie rund um die Uhr Notrufnummern griffbereit und erhalten Sie Antworten zu häufig gestellte Fragen.

Screenshots

Decibel Meter Plus4 screens
IQ Bau4 screens

Verdict

The call

The clearest difference is price: IQ Bau at Free against Decibel Meter Plus's $6.99. IQ Bau also leads on iOS requirement (13.0 vs 15.8). On update cadence, ads, in-app purchases and device support there is nothing between them.

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

IQ Bau is free to download; Decibel Meter Plus costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 8 level
Decibel Meter Plus versus IQ Bau: the parameters behind the verdict, then further details
ParameterDecibel Meter PlusIQ Bau
Price$6.99Free — better
Rating3.0 (126 ratings) — better—
Positive reviews35.7% of reviews—
Number of ratings126 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.813.0 — better
Further details — not scored
Size14 MB83 MB
Age rating4+4+
Developer华芳 张IQ Bau Gesellschaft fur innovative Bautechnik mbH

Bugs and requests

Decibel Meter Plus

Reported bugs

7 issues
  • App requires developer updates and iOS compatibility fixes
  • Baseline reading of 50-80 dB even in complete silence
  • Readings spike dramatically with minimal sound input
  • Graph display lacks user control
  • Inconsistent measurements in same environment
Show 2 more
  • Microphone sensitivity cannot be adjusted
  • App crashes or fails to function on some devices

Requested features

6 requests
  • Calibration function to adjust readings
  • Higher maximum dB limit (120+ dB) for loud events
  • Ability to attach photos with meter readings
  • Better baseline reset to 0 dB in silence
  • dB(A) weighting filter option
Show 1 more
  • Improved control over graphical display

IQ Bau

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Decibel Meter Plus

No in-app purchases

None

IQ Bau

No in-app purchases

Questions

Is Decibel Meter Plus free?
Decibel Meter Plus costs $6.99, with no in-app purchases.
Is IQ Bau free?
IQ Bau is free to download, with no in-app purchases.
Do Decibel Meter Plus or IQ Bau have ads?
Neither Decibel Meter Plus nor IQ Bau shows ads.
Which is updated more often, Decibel Meter Plus or IQ Bau?
Decibel Meter Plus ships an update every 2 months, and IQ Bau every 2 months. Most recently, Decibel Meter Plus was updated on November 6, 2026 and IQ Bau on November 3, 2026.

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