Comparison

Decibel Meter & Dosimeter vs Sonic MD

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

Head to head
About

Decibel Meter & Dosimeter

This app transforms your iPhone into a professional sound level meter. It provides real-time decibel monitoring, instant feedback on noise intensity, and smart notifications for safety limits. Track your noise exposure over time with detailed history and exportable reports.

Highlights
  • Real-time decibel monitoring
  • Noise exposure limit tracking
  • Detailed noise history
  • Exportable reports
  • Smart notifications
  • Professional calibration
Features
Read full description

Your hearing is irreplaceable. Know when it's at risk. Turn your iPhone into a sound level meter that monitors noise in real time and warns you before exposure becomes dangerous. Whether you're on a construction site, at a concert, or just curious about your daily environment — Decibel Meter gives you the clarity to protect what you can't get back. What You Get — Free: - Real-time decibel monitoring with a beautiful, color-coded gauge - Instant noise categories: Quiet, Moderate, Loud, Very Loud - Live current, peak, and average sound level statistics - OSHA and NIOSH exposure time tracking with visual warnings - Haptic feedback when noise levels change significantly - Background monitoring — keeps tracking when you switch apps - Dark mode and accessibility support What Pro Unlocks — One Purchase, Yours Forever: Smart Safety Alerts - Custom alert thresholds — set personal dB limits for any environment - Notifications at 80% of safe exposure time - Immediate alerts when OSHA/NIOSH limits are reached Noise History and Session Tagging - Track your exposure patterns over days and weeks - Tag sessions by location or activity (Office, Concert, Construction, and more) - Filter history by tag to find patterns - Detailed charts with peak and average levels Professional Tools - Calibration settings for reference level and offset adjustments - Noise exposure summaries (OSHA/NIOSH reference levels) — generate and share as PDF - Shareable PDF records of your measured noise exposure Who It's For: - Workers in noisy environments protecting their hearing - Safety professionals monitoring workplace noise - Sound engineers and musicians managing venue levels - Parents and teachers checking classroom or play environments - Anyone who wants to understand the noise around them Why It Matters: Noise-induced hearing loss is permanent. It builds gradually from exposure you may not notice. Decibel Meter tracks what your ears cannot — cumulative exposure over time — and tells you when to act. Please note: Decibel Meter uses your device microphone to provide estimates. It is not a certified sound level meter or dosimeter, and it is not intended for hearing-protection, medical, or regulatory decisions. Download now and find out what your ears have been living with. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Sonic MD

Features
Read full description

Sonic MD helps you analyze, clean, and compare the acoustic response of your iPhone speaker. With Smart Scan, you can create an acoustic reference and compare it after a cleaning session. Guided Clean automatically combines analysis, adaptive cleaning, and final verification into one simple process. MAIN FEATURES • Smart Scan Locally analyzes the acoustic response and creates a comparative reference. • Guided Clean Automatically runs Smart Scan, Adaptive Clean, and final verification. • Water Rescue Uses targeted low-frequency sequences designed to help expel residual water from the speaker. • Dust Rescue Uses rapid sound pulses designed to help remove small particles from the speaker openings. • Adaptive Clean Generates a dynamic multi-frequency acoustic cleaning pattern. • Before & After Comparison Displays a comparative index to help you evaluate changes in acoustic response. • History Stores recent sessions locally so you can compare your results. PRIVACY Core acoustic processing is performed directly on your device. Audio samples used during measurements are not sent to Sonic MD servers. Sonic MD does not replace professional technical support or certified hardware diagnostics. Results are comparative only.

Screenshots

Decibel Meter & Dosimeter4 screens
Sonic MD3 screens

Verdict

The call

The clearest difference is in-app purchases: Sonic MD at none against Decibel Meter & Dosimeter's 3. Decibel Meter & Dosimeter's advantage is ads (none vs shown). On price, update cadence, 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 Meter & Dosimeter sells 3 in-app purchases, starting at $0.99 per 7 days. Sonic MD asks for nothing beyond the download.

UpkeepUpdate frequency

Decibel Meter & Dosimeter ships an update every 3 weeks, Sonic MD every 2 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Decibel Meter & Dosimeter versus Sonic MD: the parameters behind the verdict, then further details
ParameterDecibel Meter & DosimeterSonic MD
PriceFreeFree
Rating4.1 (18 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings18 — better—
Update frequencyEvery 3 weeksEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size23 MB4 MB
Age rating4+4+
DeveloperMobile Card Games & Travel Apps LLCANDREA FERRARI

In-app purchases

3 purchases

Decibel Meter & Dosimeter

Subscriptions2
  • Weekly Subscription3 Days trial$0.997 Days
  • Annual Subscription$24.991 Year
One-time1
  • Pro - NIOSH Noise Exposure$4.99
None

Sonic MD

No in-app purchases

Questions

Is Decibel Meter & Dosimeter free?
Decibel Meter & Dosimeter is free to download, with in-app purchases available.
Is Sonic MD free?
Sonic MD is free to download, with no in-app purchases.
Do Decibel Meter & Dosimeter or Sonic MD have ads?
Sonic MD shows ads; Decibel Meter & Dosimeter does not.
Which is updated more often, Decibel Meter & Dosimeter or Sonic MD?
Decibel Meter & Dosimeter ships an update every 3 weeks, and Sonic MD every 2 weeks. Most recently, Decibel Meter & Dosimeter was updated on October 30, 2026 and Sonic MD on October 29, 2026.

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