HearGuard: Decibel Meter dB
SPL Noise Meter & Hearing
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Measure the noise around you in real time and protect your ears. Instant dB readings, loudness zones, hearing checks & history — your pocket sound level monitor.
HearGuard measures sound levels in real-time with professional-grade accuracy. Monitor noise exposure, protect your hearing health, and check if environments meet OSHA/NIOSH safety standards. Your personal decibel meter and hearing guardian.
PROTECT YOUR HEARING BEFORE IT'S TOO LATE
The World Health Organisation estimates that 1.1 billion young people are at risk of noise-induced hearing loss. It's permanent, painless at first, and entirely preventable. HearGuard gives you the awareness you need to act before the damage is done.
ACCURATE DECIBEL METER
- Real-time SPL measurement with calibrated microphone
- A-weighted (dBA) and C-weighted (dBC) frequency filtering
- Live min, max, and average noise level display
- Professional-grade accuracy comparable to dedicated sound level meters
- Colour-coded safety zones: green, yellow, and red at a glance
HEARING HEALTH PROTECTION
- Daily noise dose tracking based on NIOSH and OSHA guidelines
- Hearing risk alerts when levels exceed safe thresholds (85 dB)
- Cumulative exposure calculation - know exactly how long is too long
- Personalised hearing health insights and recommendations
- Tinnitus awareness: understand what prolonged exposure actually does
FREQUENCY ANALYZER
- Real-time spectrum analyzer with FFT visualization
- Identify dominant frequencies in any environment
- Tone generator for hearing checks and audio testing
- Professional audio measurement tools for musicians, engineers, and audiophiles
NOISE MONITORING & HISTORY
- Continuous background monitoring with customisable alerts
- Full measurement history with timestamps and locations
- Daily and weekly noise exposure dashboards
- Export data for workplace compliance documentation
- Construction site and industrial noise logging
DESIGNED FOR YOUR HEARING HEALTH
- Apple Health integration - noise exposure data synced automatically
- Hearing test functionality to check your sensitivity baseline
- Educational content about safe listening levels and ear protection
- Works with AirPods, EarPods, and external microphones
PREMIUM FEATURES (HearGuard Pro)
- Unlimited measurement history
- CSV and PDF export for compliance reporting
- Advanced spectrum analyzer with frequency labels
- Custom alert thresholds
- Ad-free experience
YOUR PRIVACY MATTERS
HearGuard processes all audio entirely on your device. We never record, store, or transmit your audio data. No microphone recordings leave your iPhone - only decibel levels are measured.
Used by musicians protecting their ears at rehearsal, parents checking noise levels at events, construction workers monitoring OSHA compliance, and anyone who cares about long-term hearing health.
Download HearGuard today and take control of your hearing health.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://bgmobiledev.com/privacy/hearguard
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Fresh new look and a smoother experience.
• Redesigned for clarity and speed
• Improved accuracy and reliability
• Performance improvements and bug fixes
Thanks for using the app! Enjoy.
The developer, Burak Guner, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- User Content
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Burak Guner
- Size
- 1.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- HearGuard Pro Lifetime USD 49.99
- Pro Annual USD 29.99
- Pro Weekly USD 3.99
- Copyright
- © 2026 Burak Guner