Comparison

Decibel Meter vs dB

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

dB

Features
Read full description

Using dB-Tester, you can control the recording, reading, deleting and other functions of the meter via bluetooth connection. The parameters such as the noise value returned by the meter can be drawn into a curve, so that the user can directly see the variation trend of the parameters. The alarm function can alert the user, accurate and practical.

Screenshots

Decibel Meter4 screens
dB4 screens

Verdict

The call

The clearest difference is rating: Decibel Meter at 4.3 against dB's 1.0. Decibel Meter also leads on ratings volume (906 vs 1). dB's advantage is in-app purchases (none vs 9) and ads (none vs shown). On price, update cadence 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. dB asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Decibel Meter holds the better App Store score, 4.3 against 1.0. That said, the two scores are not equally well evidenced: Decibel Meter has 906 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Decibel Meter ships an update every 2 weeks, dB every 3 weeks. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Decibel Meter versus dB: the parameters behind the verdict, then further details
ParameterDecibel MeterdB
PriceFreeFree
Rating4.3 (906 ratings) — better1.0 (1 ratings)
Positive reviews56.8% of reviews—
Number of ratings906 — better1
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS1311.0 — better
Further details — not scored
Size107 MB6 MB
Age rating4+4+
Developer文波 曾Shenzhen Jumaoyuan Science and Technology Co., Ltd.

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

dB

Not enough reviews yet to summarise bugs or requests.

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

dB

No in-app purchases

Questions

Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Is dB free?
dB is free to download, with no in-app purchases.
Which has better reviews, Decibel Meter or dB?
Decibel Meter is rated higher. Decibel Meter averages 4.3 out of 5 from 906 ratings, while dB averages 1.0 from 1 ratings.
Do Decibel Meter or dB have ads?
Decibel Meter shows ads; dB does not.
Which is updated more often, Decibel Meter or dB?
Decibel Meter ships an update every 2 weeks, and dB every 3 weeks. Most recently, Decibel Meter was updated on October 26, 2026 and dB on October 24, 2026.

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