Comparison

Toolbox vs Decibel Meter

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

Head to head
About

Toolbox

Read full description

Turn your device into a powerful metering tool using the built-in sensors. This free app is fully customizable, allowing you to choose between various measuring instruments. Easily manage different combinations of instruments and save them for quick access later. Personalize your app with customizable themes that suit your style. Track statistics over time with advanced data recording features, and sync them via iCloud across all your devices. Export your recordings to CSV files for easy sharing and analysis. Dark mode will turn on automatically when your system appearance changes. Available Measuring Instruments:  - Altimeter - Barometer - Compass - Clock - Course - G-force Meter - Level - Location Details - Loudness Meter - Loudness Summary - Speedometer - Speed Summary All features are available for free without any hidden costs, ads, or subscriptions. Please note that certain functions might not be available on some devices.

About

Decibel Meter

Transform your iPhone into a professional sound level meter. Measure decibels with various weighting and time response settings, track noise exposure, and analyze frequencies. Generate detailed PDF reports for acoustic analysis and safety compliance.

Highlights
  • Professional-grade decibel measurement
  • Multiple frequency weightings (dBA, dBC, dBZ)
  • NIOSH and OSHA compliance modes
  • Real-time monitoring with statistics
  • Frequency spectrum analysis
  • Noise exposure tracking (dosimeter)
  • Audio recording with synchronized data
Features
Read full description

Transform your iPhone into a professional-grade sound level meter with "Decibel Meter: dB Sound Level". Whether you're monitoring workplace noise exposure, protecting your hearing, ensuring baby safety, or conducting acoustic analysis, this app delivers accurate, real-time decibel measurements with industry-standard compliance. PROFESSIONAL-GRADE MEASUREMENT Measure sound levels with precision using multiple frequency weightings (dBA, dBC, dBZ) and time response settings. Our app complies with NIOSH and OSHA standards, making it perfect for occupational health and safety professionals, audiologists, and anyone who needs reliable noise monitoring. KEY FEATURES • Multiple Measurement Modes - dBA: A-weighted, matches human hearing sensitivity - dBC: C-weighted, includes low frequencies - dBZ: Z-weighted, flat/unweighted response - NIOSH Mode: 85 dB limit with 3 dB exchange rate - OSHA Mode: 90 dB limit with 5 dB exchange rate - Baby Safety Mode: 60 dB limit, safe for infants • Real-Time Monitoring - Live decibel readings with circular gauge display - Min, Max, and Average statistics - Color-coded visual feedback - Reference labels for common sound levels • Advanced Frequency Analysis - Frequency spectrum analyzer with bar and line charts - Octave band analysis (1/1, 1/2, 1/3 octave bands) - Visual representation of sound across frequency ranges - Expandable full-screen chart view • Time Response Settings - Fast (125ms): Quick response to changes - Slow (1000ms): Smooth, averaged response - Impulse (35ms): Captures brief sounds - 3s (3000ms): Very smooth, long-term average • Exposure Tracking (Dosimeter) - Track noise exposure over time - Calculate dose percentage - Projected 8-hour exposure - Time to limit warnings - NIOSH and OSHA compliance • Audio Recording & Analysis - Record audio with synchronized decibel data - Organize recordings with timestamps - Playback recordings with visual analysis - Export detailed PDF reports (Premium) • Customizable Alarms - Set custom decibel thresholds - Visual and haptic alerts - Real-time threshold monitoring • Professional PDF Reports - Generate comprehensive reports for recordings - Include graphs, statistics, and exposure data - Share via email, messages, or save to Files - Perfect for workplace documentation • Modern Dark Interface - Beautiful, easy-to-read dark theme - Intuitive navigation - Smooth animations and transitions PERFECT FOR - Workplace safety professionals monitoring noise exposure - Parents ensuring safe sound levels for babies - Musicians and audio engineers analyzing sound - Health-conscious individuals protecting their hearing - Industrial workers tracking occupational noise - Anyone who wants to understand their acoustic environment PREMIUM FEATURES Upgrade to unlock advanced capabilities: - Line chart visualization - Advanced frequency analysis - Unlimited audio recordings - Professional PDF report generation - NIOSH, OSHA, and Baby Safety modes - Custom alarm thresholds Download "Decibel Meter: dB Sound Level" today and take control of your acoustic environment. Protect your hearing, ensure safety compliance, and make informed decisions about noise exposure. Premium subscription is available as an in-app purchase for additional features. Terms of Use: https://mpc-app-c2e7a.web.app/decibel-terms.html Privacy Policy: https://mpc-app-c2e7a.web.app/decibel-privacy.html

Screenshots

Toolbox4 screens
Decibel Meter4 screens

Verdict

The call

The clearest difference is in-app purchases: Toolbox at none against Decibel Meter's 2. Decibel Meter's advantage is update cadence (every 6 weeks vs every 7 months) and iOS requirement (15.1 vs 26.0). On price, ads 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 2 in-app purchases, starting at $8.99 per 7 days. Toolbox asks for nothing beyond the download.

UpkeepUpdate frequency

Toolbox ships an update every 7 months, Decibel Meter every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
Toolbox versus Decibel Meter: the parameters behind the verdict, then further details
ParameterToolboxDecibel Meter
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 7 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.1 — better
Further details — not scored
Size3 MB47 MB
Age rating4+4+
DeveloperDominik ZabekULADZISLAU ZINCHANKA

In-app purchases

None

Toolbox

No in-app purchases

2 purchases

Decibel Meter

Subscriptions2
  • Premium Weekly3 Days trial$8.997 Days
  • Premium Yearly$39.991 Year

Questions

Is Toolbox free?
Toolbox is free to download, with no in-app purchases.
Is Decibel Meter free?
Decibel Meter is free to download, with in-app purchases available.
Do Toolbox or Decibel Meter have ads?
Neither Toolbox nor Decibel Meter shows ads.
Which is updated more often, Toolbox or Decibel Meter?
Toolbox ships an update every 7 months, and Decibel Meter every 6 weeks. Most recently, Toolbox was updated on November 3, 2026 and Decibel Meter on October 30, 2026.

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