Comparison

Sound Meter vs Barcode QR Reader

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

Head to head
About

Sound Meter

Features
Read full description

Turn your iPhone into a professional-grade sound level meter. dBMeter measures your environment in real time with precision โ€” from a quiet library to a roaring concert. Whether you're protecting your hearing at work, checking noise levels at home, or monitoring a live event, dBMeter gives you the data you need. REAL-TIME MEASUREMENT โ€ข Live decibel (dB) and frequency (Hz) readings โ€ข Color-coded sound level indicator with environment context โ€ข Visual meter bar with instant response โ€ข Tap to switch between dB and Hz display HEARING PROTECTION โ€ข Built-in Dosimeter tracks your daily noise dose โ€ข NIOSH and OSHA standards with exchange rate comparison โ€ข Time-Weighted Average (TWA) and projected dose โ€ข 7-day exposure history โ€ข Threshold alerts โ€” get notified the moment sound exceeds your limit RECORD & ANALYZE โ€ข Save unlimited sessions with full waveform charts โ€ข Combined dB + frequency timeline โ€ข GPS location tagging โ€” remember exactly where you measured โ€ข Add notes to any recording โ€ข Export as CSV or PDF report CAMERA MODE โ€ข Capture photos and videos with live dB overlay โ€ข Perfect for documenting noise complaints or job site conditions BACKGROUND MONITORING โ€ข Keep measuring even when the app is in the background โ€ข Threshold alerts fire even with the screen off PRIVACY FIRST โ€ข All data stays on your device โ€” nothing is sent to servers โ€ข No account required PROFESSIONAL TOOLS โ€ข Calibration offset for accurate readings with external microphones โ€ข Haptic feedback on loud peaks Note: Smartphone microphones have an accuracy of approximately ยฑ2โ€“5 dB. dBMeter is designed as a practical monitoring tool and should not be used as a substitute for certified measurement equipment in regulated environments. ................ Terms & Conditions: https://dikr.org/terms/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://dikr.org/privacy-policy/

About

Barcode QR Reader

This utility app quickly scans QR codes and barcodes from your camera, photos, or shared images. It helps you preview links, remove tracking, and supports various code types. All processing is done locally on your device for enhanced privacy.

Highlights
  • Scan QR codes and barcodes
  • Use camera, photos, or shared images
  • Preview links before opening
  • Remove tracking parameters
  • Supports multiple code types (Wi-Fi, contact, boarding pass, etc.)
  • Local processing for privacy
Features
Read full description

A fast, private scanner for QR codes and barcodes. Use your camera, pick a photo, or scan an image shared from another app. See what a link really is before you open it, and clear tracking parameters with a tap. Scan several codes at once, then share any result. It reads QR, PDF417, Aztec, Data Matrix, Wi-Fi, contact cards, boarding passes, and more. Everything stays on your device. No ads, no tracking, and no in-app purchases.

Screenshots

Sound Meter4 screens
Barcode QR Reader3 screens

Verdict

The call

The clearest difference is price: Sound Meter at Free against Barcode QR Reader's $0.99. Sound Meter also leads on iOS requirement (16.0 vs 18.0). Barcode QR Reader's advantage is update cadence (fortnightly vs every 5 months). On ads, in-app purchases and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Sound Meter is free to download; Barcode QR Reader costs $0.99 up front. Sound Meter sells 3 in-app purchases, starting at $1.99 per 7 days and Barcode QR Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Sound Meter ships an update every 5 months, Barcode QR Reader fortnightly. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

Scorecard3 real differences ยท 5 level
Sound Meter versus Barcode QR Reader: the parameters behind the verdict, then further details
ParameterSound MeterBarcode QR Reader
PriceFree โ€” better$0.99
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 5 monthsFortnightly โ€” better
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Paid
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS16.0 โ€” better18.0
Further details โ€” not scored
Size6 MB8 MB
Age rating4+4+
DeveloperCHARAFA BOUKHALFAKIVANC YAZAN

In-app purchases

3 purchases

Sound Meter

Subscriptions3
  • Weekly PRO3 Days trial$1.997 Days
  • Monthly PRO3 Days trial$2.991 Month
  • Yearly PRO$14.991 Year
1 purchases

Barcode QR Reader

One-time1
  • Premium$0.99

Questions

Is Sound Meter free?
Sound Meter is free to download, with in-app purchases available.
Is Barcode QR Reader free?
Barcode QR Reader costs $0.99, and also offers in-app purchases.
Do Sound Meter or Barcode QR Reader have ads?
Neither Sound Meter nor Barcode QR Reader shows ads.
Which is updated more often, Sound Meter or Barcode QR Reader?
Sound Meter ships an update every 5 months, and Barcode QR Reader fortnightly. Most recently, Sound Meter was updated on September 17, 2026 and Barcode QR Reader on September 21, 2026.

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