Decibel Meter: Sound Detector
Noise dB Level & SPL Analyzer
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Accurate dBA readings, free and on by default. Calibrated for your iPhone, typically within ±3 dB of a professional meter. No ads, no account, no data collected.
Decibel Meter is an accurate, honest sound level meter for iPhone. Measure noise in decibels with A-weighted dBA readings that are free and on by default, calibrated per iPhone model, typically within ±3 dB of a professional meter. No ads, no account, no data collected.
Whether you need to check noise from a loud neighbor, measure sound at a concert, see how loud your workplace is, or check how loud the nursery gets, Decibel Meter gives you a fast, honest answer.
ACCURATE OUT OF THE BOX
• Real-time decibel readings with a smooth, easy-to-read gauge
• A-weighted (dBA) measurement free and on by default, matched to human hearing
• Calibrated per iPhone model, with a free calibration trim to match a reference meter
• Honest accuracy: typically within ±3 dB of a professional sound level meter
• Clear warnings when a reading can't be trusted (like an uncalibrated headset mic)
EVERYTHING ON ONE SCREEN
• Live dB level, Peak, Min, and true Leq average
• Rolling time chart of your measurement
• Color-coded loudness zones from quiet to dangerous, with haptic feedback
• Plain-language references: whisper, conversation, traffic, concert, jet takeoff
PROTECT YOUR HEARING (PRO)
• NIOSH and OSHA noise dose tracking: see the % of your daily safe exposure
• Safe listening time: know how long you can stay before it's too loud
• 8-hour TWA projection for workplace-style awareness
ANALYZE SOUND LIKE A PRO (PRO)
• Real-time frequency spectrum analyzer with 1/3-octave bands (25 Hz to 16 kHz)
• A, C, and Z frequency weighting (dBA, dBC, dBZ)
• Standard Fast, Slow, and Impulse time weightings
SAVE, EXPORT, SHARE
• Save snapshots of any measurement with one long press (3 free, unlimited with Pro)
• Unlimited history and CSV export with Pro
• Share readings as clean images (watermark-free with Pro)
BUILT FOR iPHONE
• Live Activity and Dynamic Island show levels while you multitask
• Home and Lock Screen widget with your last reading
• Control Center control (iOS 18+) and Siri Shortcuts ("What's the sound level?")
• Full VoiceOver accessibility, dark mode, and iPad support
PRIVATE BY DESIGN
• No data collected. Ever.
• Sound is analyzed live and never recorded, stored, or sent anywhere
• No account, no ads, no tracking
FREE VS PRO
The core meter is free forever: accurate dBA measurement, Fast response, live chart, stats, and 3 saved snapshots. Decibel Meter Pro unlocks C and Z weighting, Slow and Impulse response, NIOSH/OSHA noise dose, the frequency spectrum analyzer, unlimited history, CSV export, and watermark-free sharing.
Pro is available as a weekly or yearly subscription, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Note: iPhone microphones are not certified measurement instruments. Decibel Meter is designed for awareness and everyday measurement, not regulatory compliance.
Privacy Policy: https://apphaze.com/decibelmeter/privacy
Terms of Use: https://apphaze.com/decibelmeter/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Apphaze, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- APPHAZE LIMITED
- Size
- 1.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Decibel Meter Pro $49.99
- Decibel Meter $39.99
- Decibel Meter $4.99
- Copyright
- © 2025 AppHaze Limited.