Comparison

Decibel Detector vs SoundLog

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

Head to head
About

Decibel Detector

This app provides real-time environmental noise monitoring and data tracking. It offers smart alerts for custom noise thresholds and generates professional PDF reports. Adaptable to various scenarios, it helps users understand acoustic data and identify sound sources.

Highlights
  • Real-time decibel monitoring
  • Historical data tracking
  • Customizable smart alerts
  • Multi-scenario adaptation
  • Professional PDF reporting
  • FFT spectrum analysis
  • Environmental noise classification
Features
Read full description

Decibel Detector - Your Portable Environmental Noise Lab!​​ ​Real-time Monitoring:​​ Continuously track environmental decibel levels 24/7, with support for 1-second refresh rates. ​Data Tracking:​​ Automatically save historical records and view acoustic trends by day/week/month. ​Smart Alerts:​​ Set custom noise thresholds and receive instant push notifications when levels are exceeded. ​Multi-Scenario Adaptation:​​ Switch seamlessly between preset modes for classrooms, offices, construction sites, concerts, and more. ​Professional Reporting:​​ Generate PDF inspection reports, with support for data export and comparative analysis. Powered by FFT spectrum analysis technology, the app is compatible with smartphones and tablets. It features an environmental noise classification database capable of identifying common sound sources such as traffic noise and industrial machinery. With an intuitive dashboard and dynamic waveform display, complex acoustic data becomes easy to understand. Whether you're an occupational health and safety professional conducting compliance monitoring or a general user seeking a more comfortable living environment, this app delivers reliable data support. Continuous background monitoring is now available, so you never miss critical acoustic data. Download now and start your Quiet Protection Plan!

About

SoundLog

Read full description

SoundLog helps you document noisy neighbors, upstairs footsteps, apartment noise, and other recurring noise problems on your iPhone. Record the time, dB level, audio, notes, source direction, and severity. Then organize your records into a PDF report you can review before contacting a landlord, property manager, or HOA. SoundLog is not just a decibel meter. It is a noise complaint documentation workflow: record, organize, summarize, and share only when you choose. ■ Record noise as it happens - One-tap dB measurement and audio recording - Tags for footsteps, voices, music, pets, construction, doors, and other noise - Notes, severity, source direction, and optional photos ■ Organize recurring noise - Calendar view by date - Daily, weekly, and monthly statistics - Time-of-day patterns and noise-type summaries ■ Create a PDF report - Date range, incident count, average and maximum dB - Incident list with notes and audio references - Email draft for a landlord, property manager, or HOA ■ Keep control of your data - Records and recordings are stored on your device by default - PDF and audio files are shared only when you choose ■ Free Plan - Up to 10 records and playbacks per month - Diary and statistics view - Weekly summary notifications ■ Pro Plan - Unlimited monthly records - Unlimited PDF report creation and sending - Auto Monitoring - A yearly plan is also available - Prices are shown on the App Store purchase screen. Cancel anytime One-time report tickets are also available. ■ Note SoundLog uses the iPhone microphone for simplified measurements. dB readings may differ from professional sound level meters. SoundLog helps you create organized reference records and does not guarantee legal effect. ■ Supported Languages Japanese, English, Simplified Chinese, Korean ■ EULA, Terms, and Privacy Policy Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ SoundLog Terms: https://soundlog.kt-labs-ai.com/terms Privacy Policy: https://soundlog.kt-labs-ai.com/privacy

Screenshots

Decibel Detector3 screens
SoundLog4 screens

Verdict

The call

The clearest difference is in-app purchases: Decibel Detector at none against SoundLog's 4. SoundLog's advantage is update cadence (every 4 days vs every 5 months). 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. SoundLog sells 4 in-app purchases, starting at $2.99 per month. Decibel Detector asks for nothing beyond the download.

UpkeepUpdate frequency

Decibel Detector ships an update every 5 months, SoundLog every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
Decibel Detector versus SoundLog: the parameters behind the verdict, then further details
ParameterDecibel DetectorSoundLog
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 5 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size33 MB83 MB
Age rating4+4+
Developer北京泰燊信息技术有限公司Kenichi Tabata

In-app purchases

None

Decibel Detector

No in-app purchases

4 purchases

SoundLog

Subscriptions2
  • SoundLog Pro (Monthly)$2.991 Month
  • SoundLog Pro (Yearly)$17.991 Year
One-time2
  • Single Report$1.99
  • 3-Report Pack$2.49

Questions

Is Decibel Detector free?
Decibel Detector is free to download, with no in-app purchases.
Is SoundLog free?
SoundLog is free to download, with in-app purchases available.
Do Decibel Detector or SoundLog have ads?
Neither Decibel Detector nor SoundLog shows ads.
Which is updated more often, Decibel Detector or SoundLog?
Decibel Detector ships an update every 5 months, and SoundLog every 4 days. Most recently, Decibel Detector was updated on October 30, 2026 and SoundLog on October 31, 2026.

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