NFC Proof vs dB Meter

Verify the authenticity of collectibles and products protected by The NFC Mint. Hold your phone to a tag and get a clear verdict in seconds. There's no account, no setup, and no personal data collected. Every NFC Mint tag carries a secure chip that generates a fresh cryptographic code on each tap. The app validates that code against our server, and also challenges the chip itself with an NXP originality check, which confirms the chip itself is genuine and not compromised. The result is a verdict you can trust at a glance, backed cryptographically. The colored band at the top of every validation result shows Valid Tag in green, Replay Detected in gold, and Validation Disabled in red. Below it sits the full record, with product details, creation date, chip status, UID, and scan counter. Key Features • Clear tag status on every scan • Chip-level ECC originality check that web links cannot perform • Physical tamper-evident seal status for protected products • Complete product record with serial, series, UID, and scan counter • Private on-device scan log with per-tag history and CSV export (nothing leaves your phone) Made for quick checks at the counter, at shows, or before you buy. Requirements • iPhone with NFC support • Internet connection for validation

dB Meter turns your iPhone into a fast, beautiful, and accurate sound-level meter. Measure the noise around you in real time — at home, at work, at a concert, or anywhere you want to protect your hearing. No ads. No tracking. Completely free. LIVE MEASUREMENT • Real-time decibel readings on a precise speedometer-style gauge • Smooth, sound-reactive animations that come alive with the noise around you • Min, average, and max stats plus a rolling 60-second graph PROFESSIONAL ACCURACY • A-weighting (dBA) to match how the human ear hears, like professional meters • Adjustable calibration so readings fit your device • Leq (equivalent continuous level) for recorded sessions PROTECT YOUR HEARING • Clear noise categories from Very Quiet to Dangerously Loud • Instant warning when levels become risky (around 85 dB) • Daily noise-exposure dose based on the NIOSH 85 dB / 8-hour limit RECORD, TRACK & SHARE • Save measurements and review them with charts and a map • Tag measurements with your location (optional) • Export data as CSV • Share a gorgeous measurement card to social media EVERYWHERE YOU NEED IT • Live Activity in the Dynamic Island and on your Lock Screen while measuring • Home and Lock Screen widgets showing your latest reading • A companion Apple Watch app to measure right from your wrist PRIVATE BY DESIGN • Audio is never recorded or stored — only the loudness is analyzed, instantly • Your measurements stay on your device • No ads, no analytics, no third-party tracking dB Meter provides approximate readings for everyday awareness and is not a certified measurement instrument.