Comparison

Decibel Meter Plus Pro vs Scan QR Code

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 Pro

Measure the sound levels around you with this utility app. It displays average, peak, and max values, offers decibel exposure time guidelines, and provides information on noise-induced hearing loss. The app also allows data recording and export for analysis.

Highlights
  • Measure sound levels
  • Display average, peak, and max values
  • Decibel exposure time guidelines
  • Information on noise-induced hearing loss
  • Record and export data
  • Calibrate measurements
  • Universal app support
Features
Read full description

Decibel Meter Plus Pro turns your iPhone or iPad into a clean and easy-to-use sound level meter. Measure the noise around you in real time, view current, average, max, and peak dB readings, save measurement sessions, and export reports when you need to keep a record. Whether you want to check a quiet room, monitor everyday environmental noise, compare sound levels over time, or save a simple noise report, Decibel Meter Plus Pro gives you a clear and modern way to do it. KEY FEATURES • Real-time decibel meter View live sound levels with a large, easy-to-read meter. • Current, average, max, and peak values Quickly understand how sound levels change during a measurement session. • Live noise trend See noise changes over time instead of relying on a single number. • Save measurement sessions Keep useful sound level records for later review. • Session history Browse saved sessions with date, duration, average level, max level, and noise category. • Session reports Review key sound level stats, noise trend charts, location notes, and report details. • Export & share reports Export saved reports as an image, PDF, or CSV file. A limited number of free report exports is included. Unlock Unlimited Reports with a one-time purchase for unlimited exports. • Optional location saving Save location information only with sessions you manually save. • Calibration Adjust readings to better match a reference sound meter. • Noise level guide Learn common sound levels and tips for better measurements. • iPhone and iPad support Enjoy a redesigned interface that works beautifully on both iPhone and iPad. • 30+ languages The app is now localized for users around the world. • Privacy-friendly design Audio is processed on your device and is not uploaded. UNLIMITED REPORTS Unlimited Reports is an optional one-time unlock for users who want unlimited image, PDF, and CSV report exports. No subscription is required. SUPPORT If you have questions, feedback, or need help with purchases or report exports, please contact us at: ipixeltech@gmail.com IMPORTANT NOTE Decibel Meter Plus Pro uses the built-in microphone on your device. Readings are intended for general reference and everyday noise checks. For certified workplace testing, legal compliance, or professional acoustic measurement, please use certified sound level equipment.

About

Scan QR Code

Features
Read full description

Scan QR codes and barcodes fast, easy, and free with the all-in-one QR Code & Barcode Scanner for iPhone. Whether you're checking a product, opening a link, joining Wi-Fi, or making your own QR codes, this app turns your phone into a complete scanning toolkit. Built with a clean, modern interface and smart features, it handles every code in seconds. KEY FEATURES QR Code Reader & Barcode Scanner – Scan any code instantly with one tap. Quick Scan – Just point your camera and it scans automatically. Create Custom QR Codes – Generate your own QR codes for links, text, and more. Customise Your QR – Personalize colors with foreground and background options plus ready-made themes (Classic, Dark, Blue). Scan from Photos – Detect QR codes and barcodes inside your gallery images. Smart Actions – Copy content, open links in browser, or share with one tap. History Manager – Save, search, and organize all your past scans by type (URL, Text, Email, Phone, Contact). Save & Share – Export your QR codes or share them instantly. Multiple Languages – Use the app in English, Hindi, Spanish, Arabic, Chinese, French, German, Portuguese, and more. Clean & Modern UI – Smooth performance and an easy-to-use layout. SUPPORTS ALL POPULAR CODE FORMATS QR, Data Matrix, Aztec, Micro QR, rMQR, PDF417, EAN, UPC, Code 128, ITF, Codabar, and GS1 DataBar. PERFECT FOR Everyday users scanning for payments, Wi-Fi, events, or promotions. Businesses managing products and inventory. Creators sharing personalized QR codes with their audience. Anyone who wants fast, simple, and reliable scanning. Download Scan QR Code & Barcode Now and start scanning smarter and faster! Privacy Policy:- https://emiloanmortgagecalculator.blogspot.com/2026/06/privacy-policy_01853708262.html Terms of Use:- https://emiloanmortgagecalculator.blogspot.com/2026/06/terms-of-use.html

Screenshots

Decibel Meter Plus Pro4 screens
Scan QR Code4 screens

Verdict

The call

The clearest difference is price: Scan QR Code at Free against Decibel Meter Plus Pro's $2.99. Scan QR Code also leads on in-app purchases (none vs 1). Decibel Meter Plus Pro's advantage is ads (none vs shown) and device support (3 vs 1). On iOS requirement 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

Scan QR Code is free to download; Decibel Meter Plus Pro costs $2.99 up front. Decibel Meter Plus Pro sells 1 one-off in-app purchase. Scan QR Code asks for nothing beyond the download.

Scorecard4 real differences · 6 level
Decibel Meter Plus Pro versus Scan QR Code: the parameters behind the verdict, then further details
ParameterDecibel Meter Plus ProScan QR Code
Price$2.99Free — better
Rating3.8 (80 ratings) — better—
Positive reviews52.4% of reviews—
Number of ratings80 — better—
Update frequencyEvery 2 months—
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better16.6
Further details — not scored
Size12 MB9 MB
Age rating4+4+
Developer华芳 张HARDIK DINESHBHAI RADADIYA

In-app purchases

1 purchases

Decibel Meter Plus Pro

One-time1
  • Unlimited Reports$4.99
None

Scan QR Code

No in-app purchases

Questions

Is Decibel Meter Plus Pro free?
Decibel Meter Plus Pro costs $2.99, and also offers in-app purchases.
Is Scan QR Code free?
Scan QR Code is free to download, with no in-app purchases.
Do Decibel Meter Plus Pro or Scan QR Code have ads?
Scan QR Code shows ads; Decibel Meter Plus Pro does not.

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