dB Master vs dB Guard

dB Master is a fast, accurate, and easy-to-use sound level meter that turns your phone into a professional noise measurement tool. Perfect for checking environmental noise, testing audio equipment, or simply understanding the loudness around you. Features: Real-time dB measurement (min, max, average) Live sound graphs for clear noise visualization Peak hold & noise alerts Frequency spectrum analysis Calibration settings for improved accuracy Simple, clean interface Whether you're measuring traffic noise, monitoring workplace sound, or testing speakers, dB Master gives you reliable and intuitive noise level readings anytime, anywhere. Download dB Master and take control of your sound environment.

Dealing with noisy neighbors? Need proof for your landlord or a noise complaint? dB Guard turns your iPhone into a calibrated noise meter and evidence logger — the only tool you need to document noise problems and build a professional case. REAL-TIME NOISE MEASUREMENT Measure decibel levels in real time with a clean, easy-to-read gauge. Set your own dB threshold and dB Guard will automatically detect and log noise events when sound levels exceed your limit. AUTOMATIC NOISE EVENT LOGGING Every noise event is captured with precise timestamps, peak dB, average dB, and duration. Add notes and photos to document the source. Events are grouped by date so you can see your full noise history at a glance. QUIET HOURS RULES Set up quiet hours rules (e.g., 10 PM – 7 AM) with custom dB thresholds. dB Guard automatically flags violations, giving you clear evidence of noise during protected hours. NOISE PATTERN ANALYTICS (PRO) See when noise is worst with a weekly heatmap showing patterns by day and hour. Track your noisiest hours, quietest days, total events, and average peak levels over 7 or 30 days. PROFESSIONAL PDF EVIDENCE REPORTS (PRO) Generate timestamped PDF reports with noise statistics ready to share with landlords, property managers, HOAs, or courts. Present professional, objective data instead of verbal complaints. ALL DATA STAYS ON YOUR DEVICE Your noise data is stored locally on your iPhone. We don't collect, transmit, or sell your data. Your evidence is yours alone. FREE FEATURES • Real-time decibel meter • Last 24 hours of noise event history • Configurable dB threshold & event duration • Dark and light mode PRO FEATURES ($3.99/week or $29.99/year) • Unlimited noise event logging & full history • Professional PDF evidence reports • Noise pattern analytics & heatmaps • Quiet hours violation tracking • Unlimited recording time Whether you're dealing with loud neighbors, construction noise, barking dogs, or late-night parties — dB Guard gives you the data and documentation you need to take action. Apple Terms of Service: https://www.apple.com/uk/legal/internet-services/itunes/uk/terms.html Privacy Policy: https://dbguard.app/privacy