Privacy / 개인정보 — Decilog Privacy Policy
Sound Level Meter — Decilog
Measure ambient sound, understand the changes, and export a clear report.
Email [email protected] for help with Decilog. Include your iPhone model, iOS version, app version, and the steps that caused the issue. Please do not send passwords, payment details, or private audio.
The app estimates sound levels using your phone microphone. It is not a certified sound level meter and must not be used for legal evidence, medical decisions, or occupational hearing-safety assessments.
Check iPhone Settings → Privacy & Security → Microphone → Decilog. Close other apps using the microphone and reopen Decilog. Microphone access is needed for live measurement; no account is required.
Readings depend on the phone, placement, and surroundings. If you have a reference meter, use calibration in Decilog Settings. Calibration does not turn a phone into a certified measuring instrument.
Display Hold freezes the displayed value while measurement continues. Stop measurement to finish the session.
Open Report, choose PDF, JPG, or PNG, then use the iOS share sheet to save to Files, Photos where offered, or another destination. Basic reports and exports are available without watching an ad or buying Pro.
Decilog Lifetime Pro is a single, non-consumable Apple in-app purchase. Open the PRO screen to see its local price and purchase through Apple. It removes ads and includes expanded reports, additional skins, and Pro measurement controls.