Comparison

Decibel Shield vs Sound Meter

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

Head to head
About

Decibel Shield

Measure and track sound levels in real-time with this user-friendly decibel meter. Log historical data, integrate with Apple Health, and gain insights into your sound environment. Includes a white noise generator for focused listening.

Highlights
  • Real-time decibel monitoring
  • Historical data tracking
  • Apple Health integration
  • White noise generator
  • iCloud sync
  • Location tagging
  • Background processing
Features
Read full description

Decibel Shield™ : Sound Level Meter Discover the power of sound around you with Decibel Shield™ , the free and user-friendly app designed to make noise level measurement simple and insightful. Whether you're monitoring workplace noise, checking the volume at events, or just curious about everyday sound levels, Decibel Shield™ offers an easy-to-use solution right at your fingertips. Key Features Real-Time Decibel Monitoring: Instantly view the current sound levels in decibels (dB) with precise accuracy. Perfect for those needing an accurate dB meter. Historical Data Tracking: Keep a log of all your measurements with date and time stamps for future reference. Apple Health App Integration: Save sound levels to iOS health app to track historical levels. White Noise Generator: Listen to different sounds including white,brown,blue noise and more. Trends View: Provides insights into your sound level measurements over different periods. Explore various statistics and trends to better understand your sound environment. Location Tagging: Record the location of your measurements, ideal for comparing noise levels across different places. Max and Average dB Readings: Alongside real-time data, view the highest and average decibel readings of each session. Background Processing: Measure sound levels even when the app is running in the background. VU Meter Visual Representation: A dynamic VU meter provides a visual understanding of current noise levels. Important Notice The sound level measurement provided by this app is for informational purposes only. While we strive to ensure the accuracy of the measurements, we cannot guarantee that the results are entirely precise due to various factors such as device calibration, microphone quality, and environmental conditions. By using this app, you agree to the following: No Guarantee of Accuracy: The measurements and results provided by this app are not guaranteed to be accurate and should not be relied upon for critical or professional purposes. User Responsibility: Users are solely responsible for the interpretation and use of the data provided by this app. We strongly recommend using professional sound level meters and consulting with qualified professionals for accurate measurements and health-related concerns. Limitation of Liability: The developers, owners, and affiliates of this app shall not be held liable for any damages, injuries, or adverse effects resulting from the use or misuse of the app or the reliance on the data provided. This includes, but is not limited to, direct, indirect, incidental, and consequential damages. Health and Safety: If you have any concerns about noise levels and their impact on your health, please consult with a medical professional or an accredited specialist in sound measurement and acoustics. Visit NIOSH website for more. By downloading and using this app, you acknowledge that you have read, understood, and agreed to this disclaimer. Decibel Shield™ Premium Subscription Information: Joining the Decibel Shield™ Premium Subscription may include a 7-day free trial, followed by a yearly membership fee. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable. Privacy Policy : https://appstack.wixsite.com/apps/policies Terms of Service : https://appstack.wixsite.com/apps/terms

About

Sound Meter

Measure and record environmental noise levels in real-time. Tag recordings with GPS, view sound history with min/max/average values, and analyze the sound spectrum. Export data as CSV or audio files, with offline functionality.

Highlights
  • Real-time dB measurement
  • GPS tagging for recordings
  • Local log management
  • Min, max, and average values
  • FFT spectrum analysis
  • CSV and audio export
  • Offline functionality
Features
Read full description

Measure environmental noise in real-time, record it with GPS, and manage your sound history. Key Features: • Instant dB measurement with a clean interface • GPS tagging for each record (optional) • Save and manage logs locally • View min, max, and average values • FFT spectrum and real-time graph • Export as CSV or audio file • Works completely offline • No ads in Pro version Perfect for monitoring noise at home, work, or outdoors.

Screenshots

Decibel Shield4 screens
Sound Meter4 screens

Verdict

The call

The clearest difference is in-app purchases: Sound Meter at none against Decibel Shield's 4. Sound Meter also leads on rating (5.0 vs 4.7). Decibel Shield's advantage is update cadence (daily vs every 11 months) and ratings volume (636 vs 1). On price, ads, device support and 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

Both are free to download. Decibel Shield sells 4 in-app purchases, starting at $1.99 per 7 days. Sound Meter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sound Meter holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Decibel Shield has 636 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Decibel Shield ships an update daily, Sound Meter every 11 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Decibel Shield versus Sound Meter: the parameters behind the verdict, then further details
ParameterDecibel ShieldSound Meter
PriceFreeFree
Rating4.7 (636 ratings)5.0 (1 ratings) — better
Positive reviews76.9% of reviews—
Number of ratings636 — better1
Update frequencyDaily — betterEvery 11 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.6 — better16.6
Further details — not scored
Size43 MB5 MB
Age rating4+4+
DeveloperAPPSTACK LLCChang Keun Jung

In-app purchases

4 purchases

Decibel Shield

Subscriptions4
  • Premium Weekly7 Days trial$1.997 Days
  • Premium Monthly7 Days trial$4.991 Month
  • Annual Membership7 Days trial$44.991 Year
Show 1 more
  • Premium Yearly7 Days trial$49.991 Year
None

Sound Meter

No in-app purchases

Questions

Is Decibel Shield free?
Decibel Shield is free to download, with in-app purchases available.
Is Sound Meter free?
Sound Meter is free to download, with no in-app purchases.
Which has better reviews, Decibel Shield or Sound Meter?
Sound Meter is rated higher. Decibel Shield averages 4.7 out of 5 from 636 ratings, while Sound Meter averages 5.0 from 1 ratings.
Do Decibel Shield or Sound Meter have ads?
Neither Decibel Shield nor Sound Meter shows ads.
Which is updated more often, Decibel Shield or Sound Meter?
Decibel Shield ships an update daily, and Sound Meter every 11 months. Most recently, Decibel Shield was updated on October 25, 2026 and Sound Meter on October 12, 2026.

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