Caliber dB: Sound Level Meter

Caliber dB is a professional-grade high-precision sound level meter (SPL) for acoustic consultants, safety professionals, and health-conscious users. Transform your smartphone into a noise analysis lab with on-device sound classification and compliance reporting. Monitor industrial noise for OSHA compliance, analyze room acoustics, or document neighbor noise for legal purposes with the accuracy you need. KEY FEATURES: - REAL-TIME PRECISION: High-accuracy dB with A/C/Z weighting and Fast/Slow response. - ON-DEVICE SOUND CLASSIFICATION: Identifies 18+ categories locally on your device. Audio is not uploaded to any cloud AI service. - PROFESSIONAL COMPLIANCE: OSHA, NIOSH, WHO, and international environmental standards. - DETAILED REPORTS: Localized PDF, JSON, and CSV exports. - NEIGHBOR NOISE MODE: Community complaint logging with limit analysis and location tags. - SMART CALIBRATION: Advanced 3-step hardware-specific calibration. - OPTIONAL AD-FREE SUBSCRIPTION: The full app is free with occasional ads. An optional In-App Purchase subscription removes ads only — no features are locked behind payment. Privacy: https://www.caymaztech.com/privacy Terms: https://www.caymaztech.com/terms