Decibel Meter Detector vs Decibel：Sound Meter

Decibel Meter Detector is a sound level meter for iPhone and iPad. Measure everyday environmental noise at home, in an office, while studying or during travel, and keep a record of how sound changes over time. MEASURE AND UNDERSTAND SOUND See live decibel readings, an energy-based average (Leq), maximum levels and sound-level charts. Switch between a simple view and professional statistics, including A/C/Z frequency weighting, Fast/Slow/Impulse response and frequency analysis. COMPARE BEFORE AND AFTER Measure two conditions with a guided workflow: open versus closed windows, equipment on versus off, or two locations. Review the measured difference with input, calibration and data-completeness checks. KEEP USEFUL REPORTS Choose general, sleep, office, study or traffic reports. Review time distributions and loud events, add names, tags and notes, and share CSV data, report images or PDF reports. Timed measurements and optional background measurement support longer sessions. DO I HAVE TO SAVE AUDIO? No. Choose sound-level data only, short event clips or a complete recording. Measurements and recordings are stored on your device. Optional Apple Health integration writes environmental sound exposure when you enable it. CAN A PHONE REPLACE A PROFESSIONAL SOUND LEVEL METER? No. Accuracy depends on the microphone, calibration and surroundings. Very quiet sound may fall below the measurable range. This app provides everyday reference, not certified measurements for legal evidence, workplace compliance or hearing diagnosis.

Decibel：Sound Meter is an app that can provide real-time decibel data, with the following features: -High precision measurement, real-time measurement -Provide location -Real time decibel camera -Provide detailed measurement reports -One click sharing of measurement data -Support for exporting audio data I Payment: The user deducts the payment through their iTunes account and makes the payment upon confirmation of purchase II Renewal: The user's iTunes account will be charged within 24 hours before expiration, increasing the corresponding subscription period III Cancel Renewal: To cancel the renewal, go to "iTunes Store and App Store" ->click on "App ID" to enter the "Account Settings" page, click on "Subscription", and choose to unsubscribe IV Privacy Agreement: https://docs.qq.com/doc/DVURkSmJKSll0dXBW 5、 Terms of Use: https://docs.qq.com/doc/DVXB3TWtxSUt2Rk1R