Comparison

Decibel dB vs QR Code. Scanner & Reader.

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

Head to head
About

Decibel dB

Measure ambient noise and sound levels in real-time with this tool. It helps control noise pollution and protect user health by displaying decibel values numerically and graphically. Track exposure over time with NIOSH and OSHA compliant measurements.

Highlights
  • Measure noise in decibels (dB)
  • Track MIN, AVG, MAX sound levels
  • Record and export measurements
  • Overlay noise levels on photos/videos
  • NIOSH and OSHA compliant meter
Features
Read full description

Decibel Meter is an app intended for objective, real-time measurement of ambient noise and sound levels. It is intended for noise pollution control with the aim to protect the health of its users. The app displays quantitative noise level values in decibels using various measurements both in numerical and graphical form. The app also features a fully functional noise level meter to measure the user’s noise exposure over a period of time according to NIOSH and OSHA (to be chosen by the user). FEATURES: • Measure noise level in decibels (dB); • Track minimum (MIN), average (AVG) and maximum (MAX) sound levels; • Record measurement results; • Save, export and play recorded measurements; • Photos and videos with the ambient noise level overlay; • Noise level meter compliant with NIOSH and OSHA. The app was created with the purpose to prevent negative noise effects on the health of its users. Please choose from our standard subscription options below: 1-week subscription from $2.99; 1-month subscription from $5.99; 12-month subscription from $10.99. Prices may change depending on your country. Privacy policy: https://it-incubator.eu/en/privacy-policy ​​Terms of use: https://it-incubator.eu/en/terms-of-use

About

QR Code. Scanner & Reader.

Easily scan QR codes and barcodes to access information like menus, product details, and online resources. Create custom codes for sharing or promotion. Includes a fun QR code-based game and a history log.

Highlights
  • Scan QR codes and barcodes
  • Generate custom QR codes
  • Instant menu access
  • Product price and nutrition info
  • Smart shopping price comparison
  • Scan history log
  • QR code Tic-Tac-Toe game
Features
Read full description

Easily scan QR codes and barcodes to access menus, product information, or online resources. Effortlessly create your own codes to share details or promote your brand. Whether you're shopping, dining, or growing your business, this app makes the process smooth and enjoyable. Key Features: 1) Seamless Scanning: Instantly scan all types of QR codes and barcodes. 2) Generate Custom Codes: Quickly create QR codes and barcodes for sharing information, links, or marketing purposes. 3) Immediate Menu Access: Scan QR codes to instantly view restaurant menus, making dining or ordering a breeze. 4) Product Insights: Scan barcodes to access nutritional information and prices on the spot. 5) Smart Shopping: Compare prices and discover products efficiently while on the move. 6) Scan History: Maintain a log of all your scans for easy future reference. 7) QR Code Tic-Tac-Toe: Enjoy a fun game of tic-tac-toe using QR codes. Scan and place your moves in this interactive game to challenge friends or practice your skills. Subscription Information: Charges will be applied to your iTunes account upon purchase confirmation. Renewals are processed within 24 hours before the end of the current subscription period, with renewal costs specified. Manage your subscriptions and turn off auto-renewal through your Account Settings after purchase. Experience enhanced convenience with our QR & Barcode Scanner App, simplifying both your digital and physical interactions. Download now to start scanning and playing!   Privacy Policy: https://docs.google.com/document/d/1gMG0k_yKpJSApduqq80lrRWXBEwOB6FrVt3XwqEeoJc/edit Terms of Use: https://docs.google.com/document/d/1I6wOinJXixopRQXBX3wM6MD7VjThmutzzgOkB53vz_w/edit

Screenshots

Decibel dB3 screens
QR Code. Scanner & Reader.4 screens

Verdict

The call

The clearest difference is review sentiment: Decibel dB at 77% against QR Code. Scanner & Reader.'s 0%. Decibel dB also leads on rating (4.7 vs 4.2) and ratings volume (685 vs 19). QR Code. Scanner & Reader.'s advantage is monetization model (free with in-app purchases vs subscription) and update cadence (every 4 days vs every 4 months). On price, 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

Both are free to download. Decibel dB sells 6 in-app purchases, starting at $3.99 per 7 days and QR Code. Scanner & Reader. sells 1 in-app purchase, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Decibel dB holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Decibel dB has 685 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 77% of Decibel dB's written reviews are positive against 0% of QR Code. Scanner & Reader.'s.

UpkeepUpdate frequency

Decibel dB ships an update every 4 months, QR Code. Scanner & Reader. every 4 days. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

Scorecard6 real differences · 4 level
Decibel dB versus QR Code. Scanner & Reader.: the parameters behind the verdict, then further details
ParameterDecibel dBQR Code. Scanner & Reader.
PriceFreeFree
Rating4.7 (685 ratings) — better4.2 (19 ratings)
Positive reviews77.4% of reviews — better0.0% of reviews
Number of ratings685 — better19
Update frequencyEvery 4 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPod — betteriPhone
Requires iOS12.4 — better17.0
Further details — not scored
Size32 MB39 MB
Age rating4+4+
DeveloperITincubator UABHalil Ak

Customer experience

Decibel dB

All ratings676 ratings
Positive95.0%
Neutral3.6%
Negative1.5%
Written reviews31 reviews
Positive77.4%
Neutral9.7%
Negative12.9%

QR Code. Scanner & Reader.

All ratings15 ratings
Positive66.7%
Neutral13.3%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Decibel dB

Reported bugs

2 issues
  • Inaccurate decibel readings in some environments
  • Occasional crashes or freezes

Requested features

2 requests
  • Ability to record and export noise measurements
  • Integration with smart home devices

QR Code. Scanner & Reader.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Decibel dB

Subscriptions6
  • Sound Level Meter Pro7 Days trial$3.997 Days
  • Weekly Access$3.997 Days
  • Decibel Meter: Pro Version7 Days trial$6.991 Month
Show 3 more
  • Monthly Access$6.991 Month
  • Noise Level Meter (dB) Pro7 Days trial$12.991 Year
  • Yearly Access$12.991 Year
1 purchases

QR Code. Scanner & Reader.

Subscriptions1
  • Get Premium Access to QR app3 Days trial$6.997 Days

Questions

Is Decibel dB free?
Decibel dB is free to download, with in-app purchases available.
Is QR Code. Scanner & Reader. free?
QR Code. Scanner & Reader. is free to download, with in-app purchases available.
Which has better reviews, Decibel dB or QR Code. Scanner & Reader.?
Decibel dB is rated higher. Decibel dB averages 4.7 out of 5 from 685 ratings, while QR Code. Scanner & Reader. averages 4.2 from 19 ratings.
Do Decibel dB or QR Code. Scanner & Reader. have ads?
Neither Decibel dB nor QR Code. Scanner & Reader. shows ads.
Which is updated more often, Decibel dB or QR Code. Scanner & Reader.?
Decibel dB ships an update every 4 months, and QR Code. Scanner & Reader. every 4 days. Most recently, Decibel dB was updated on October 22, 2026 and QR Code. Scanner & Reader. on October 24, 2026.

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