Comparison

Decibel Meter vs Decibel Meter Master

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

Head to head
About

Decibel Meter

Transform your phone into a professional-grade decibel meter for real-time noise detection. Features advanced algorithms, noise visualization, and recording capabilities for comprehensive sound analysis.

Highlights
  • Military-grade algorithm
  • Professional GB weighted detection
  • Noise recording
  • Noise classification system
  • AI ambient noise visualization
  • Noise dosimeter
Features
Read full description

The decibel meter 3 is shocking! This time, your mobile phone is a professional decibel testing instrument that can provide you with noise detection anytime, anywhere. Decibel Meter 3 Features: - Brand new military-grade algorithm - Brand new UI page design - Brand new noise rendering animation - Brand new professional-level GB weighted detection engine - Brand new noise recording capability - New professional-grade noise classification system - Brand new AI real-time ambient noise source visualization engine - Brand new noise dosimeter we continue to pay attention to your health More features will be launched in subsequent versions, so stay tuned! *Note: Although we provide high-precision algorithms, due to the limitations of hardware specifications of mobile devices such as mobile phones, it cannot completely replace professional equipment. The data is for reference only. Get subscription content: 1. Pure and ad-free 2. The decibel test is more sensitive and accurate 3. Free access to all toolkits *Our standard subscription options are: Provide continuous subscription after VIP free trial, VIP continuous weekly subscription, VIP continuous monthly subscription, and VIP continuous subscription annual subscription options. During the subscription period, you can permanently say goodbye to the interruption of advertisements; the decibel test is more sensitive and accurate; all toolkits are used for free; the priority experience of more functions is obtained. * Subscription fees will be charged to your iTunes account at confirmation of purchase and at the beginning of each renewal cycle. Subscriptions that include a free trial period will automatically renew to a paid subscription. You can cancel your subscription or free trial in iTunes settings at least 24 hours before the end of the free trial period. Cancellation of subscription will take effect after the last day of the current subscription period. Once the cancellation of subscription takes effect, your subscription service rights will become invalid. Privacy Policy: ttps://pages.flycricket.io/fen-bei-ce-shi-yi/privacy.html User Agreement: https://pages.flycricket.io/fen-bei-ce-shi-yi/terms.html

About

Decibel Meter Master

This tool transforms your iPhone into a professional sound level meter. It accurately measures ambient noise levels, providing real-time decibel readings directly on your device.

Highlights
  • Measures sound level
  • Acts as a decibel meter
  • Uses iPhone as a meter
  • Measures noise level
Features
Read full description

Decibel Meter Master makes your iPhone as a sound level meter,it can measure noise level.

Screenshots

Decibel Meter4 screens
Decibel Meter Master2 screens

Verdict

The call

The clearest difference is in-app purchases: Decibel Meter Master at none against Decibel Meter's 9. Decibel Meter Master also leads on ads (none vs shown) and rating (4.6 vs 4.3). Decibel Meter's advantage is update cadence (every 2 weeks vs every 6 months). On price, review sentiment 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 Meter sells 8 in-app purchases, starting at $1.99 per 7 days. Decibel Meter Master asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Decibel Meter Master holds the better App Store score, 4.6 against 4.3. Both are backed by a comparable volume of ratings — 907 and 3.2K respectively. Written reviews complicate that: 57% of Decibel Meter's written reviews are positive against 52% of Decibel Meter Master's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Decibel Meter ships an update every 2 weeks, Decibel Meter Master every 6 months. Both last shipped on November 6, 2026.

Scorecard7 real differences · 3 level
Decibel Meter versus Decibel Meter Master: the parameters behind the verdict, then further details
ParameterDecibel MeterDecibel Meter Master
PriceFreeFree
Rating4.3 (907 ratings)4.6 (3.2K ratings) — better
Positive reviews56.8% of reviews — better51.9% of reviews
Number of ratings9073.2K — better
Update frequencyEvery 2 weeks — betterEvery 6 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS139.0 — better
Further details — not scored
Size107 MB25 MB
Age rating4+4+
Developer文波 曾燕辉 冯

Customer experience

Decibel Meter

All ratings905 ratings
Positive83.0%
Neutral7.6%
Negative9.4%
Written reviews88 reviews
Positive56.8%
Neutral5.7%
Negative37.5%

Decibel Meter Master

All ratings2,913 ratings
Positive91.6%
Neutral4.5%
Negative3.9%
Written reviews77 reviews
Positive51.9%
Neutral11.7%
Negative36.4%

User reviews

Decibel Meter

From 907 App Store ratings

What we love

  • 👍 Accurate decibel measurements
  • 🚀 Easy to use
  • 💡 Useful for various applications (e.g. restaurants, heating systems)
  • 🚀 Free version works great

Room to improve

  • 🐛 Inaccurate readings at higher decibel levels
  • 🔒 Requires location access for no apparent reason
  • 🔒 Excessive ads and subscription model
  • 🐛 Compatibility issues (e.g. no iPad support, Chinese EULA)

Decibel Meter Master

From 3.2K App Store ratings

What we love

  • 🚀 Simple and easy to use
  • 👍 Useful for measuring sound levels
  • 🆓 Free app

Room to improve

  • 🐛 Inaccurate readings
  • 🔍 Questionable security with clipboard access
  • 🔧 Doesn't work consistently

Bugs and requests

Decibel Meter

Reported bugs

4 issues
  • Decibel readings capped at 90 dB
  • Displaying incorrect address information
  • Crashing or freezing on launch
  • Showing 70 dB in a completely silent room

Requested features

3 requests
  • Landscape mode for iPad
  • Ability to detect sounds above 90 dB
  • Option to disable ads or switch to a paid version

Decibel Meter Master

Reported bugs

2 issues
  • Spelling mistakes in the app
  • Inconsistent behavior across devices

Requested features

3 requests
  • Add calibration option
  • Ability to save and review measurements
  • Frequency profile display

In-app purchases

8 purchases

Decibel Meter

Subscriptions6
  • Free trail then subscribe3 Days trial$1.997 Days
  • 分贝测试仪专业版2 variants$2.993 Months
  • 分贝仪专业版3 Days trial$2.997 Days
Show 3 more
  • 分贝测试仪专业版$4.496 Months
  • Pro Monthly Subscription3 Days trial$5.491 Month
  • 分贝测试仪专业版$25.991 Year
One-time2
  • Remove advertisement$0.99
  • 终身尊享权益$29.99
None

Decibel Meter Master

No in-app purchases

Questions

Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Is Decibel Meter Master free?
Decibel Meter Master is free to download, with no in-app purchases.
Which has better reviews, Decibel Meter or Decibel Meter Master?
Decibel Meter Master is rated higher. Decibel Meter averages 4.3 out of 5 from 907 ratings, while Decibel Meter Master averages 4.6 from 3.2K ratings.
Do Decibel Meter or Decibel Meter Master have ads?
Decibel Meter shows ads; Decibel Meter Master does not.
Which is updated more often, Decibel Meter or Decibel Meter Master?
Decibel Meter ships an update every 2 weeks, and Decibel Meter Master every 6 months. Most recently, Decibel Meter was updated on November 6, 2026 and Decibel Meter Master on November 6, 2026.

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