Sound Level Meter: Decibel Pro

Sound Level Meter: dB Pro turns your phone into a fast, easy-to-use decibel meter. Open the app and instantly see the noise around you in real time on a clear, color-coded gauge, no setup, no account, and no internet required. Whether you're checking on noisy neighbors, measuring traffic and construction, monitoring an office or classroom, or just curious how loud your world is, this sound level meter gives you an at-a-glance reading of ambient noise in decibels (dB). KEY FEATURES • Real-time dB meter — a large, easy-to-read sound level display • Color-coded gauge — instantly see if it's quiet, moderate, loud, or dangerous • Min / Average / Max — track the quietest, loudest, and average levels of a session • Measurement sessions — start and stop to record a session, then save it • History — every saved session is kept with its date, duration, and peak dB • Sound-level chart — tap any session to see how the noise changed over time • Share — export a snapshot of your readings to send to anyone • Calibration — fine-tune the meter by ±10 dB to match a reference device • Dark mode — comfortable viewing day or night • Fully offline — works anywhere, with no sign-up required GREAT FOR • Noisy neighbors, parties, and street noise • Traffic, construction, and machinery • Offices, classrooms, libraries, and meeting rooms • Concerts, bars, restaurants, and events • Nurseries, bedrooms, and household appliances • Setting up microphones, recording, and streaming spaces PRIVACY FIRST Your microphone is used only to measure sound levels in real time. Audio is never recorded, saved, or transmitted, and the app needs no account to work. PLEASE NOTE Sound Level Meter: dB Pro uses your phone's built-in microphone, which is not a laboratory-calibrated instrument. Readings are approximate and intended for general, informational, and reference use only, not for professional, occupational-safety, legal, or medical purposes. Microphone sensitivity varies between phone models; use the built-in calibration setting to align readings with a trusted reference meter. Download Sound Level Meter: dB Pro and start measuring the noise around you today.