dB Meter vs DigiCoraize

No ads. No tracking. Ever. dB Meter is the professional sound level meter that protects your hearing — not your data. While other noise apps monetize you with ads and trackers, everything here runs on-device. Your audio is analyzed live on-device and never uploaded; optional Pro recordings stay on your device, under your control. MEASURE — REAL-TIME SOUND LEVEL METER A beautiful analog gauge with a live needle, color-coded safety zones and real-world comparisons like "Library quiet" or "Rock concert". Min, average and max readings at a glance, with haptic feedback as levels change. PROTECT — NIOSH-BASED NOISE DOSE dB Meter tracks your daily noise dose against the NIOSH recommended exposure limit (85 dBA over 8 hours). One glance tells you whether today's exposure is in the safe zone — and an alert warns you before your ears pay the price. UNDERSTAND — HISTORY & INSIGHTS Every measurement is saved automatically. Charts reveal your daily averages, exposure timeline against the 85 dB line, loudest days and category distribution — so you learn where your noise actually comes from. TUNED LIKE A PRO • dBA / dBC / dBZ frequency weighting • Custom calibration against a reference meter • NIOSH-aligned dose formula with time-weighted average (TWA) • Audio recording alongside measurements (optional, stays on your device) • CSV export of your measurement history BUILT FOR EVERY DAY • Streaks, badges and daily hearing tips keep you consistent • Streak freeze protects your progress when life happens • Home Screen widgets for one-tap measuring • Siri Shortcuts — start a measurement hands-free • Five hand-crafted themes with a premium dark-first design • Full VoiceOver support — live readings are spoken as they change FREE VS PRO Free users get the full real-time meter, frequency weighting basics and 7 days of history. Pro unlocks unlimited history, advanced charts, NIOSH dose tracking, calibration, dBA/dBC weighting and all themes — as a Monthly subscription, a Yearly subscription with a 7-day free trial, or a one-time Lifetime purchase. WHY PRIVACY MATTERS Most sound meter apps are ad-funded, which means your microphone data feeds someone's ad business. dB Meter collects nothing: App Privacy label "Data Not Collected". Audio never leaves your device. That is a promise, not a setting. Built by an indie developer who cares about hearing health. Terms of Use: https://theknack2020-sketch.github.io/dbmeter-privacy/terms Privacy Policy: https://theknack2020-sketch.github.io/dbmeter-privacy/privacy

Audio Digital Visualizer Visualizes sound from the smartphone's microphone in real time. You can also customize the colors using the theme feature. You can also use it in demo mode without using the microphone.