Loudmark - Decibel Meter

Noise is hard to prove. By the time anyone asks, it has stopped. Loudmark is a decibel meter built for that moment: it shows how loud things are in plain words, then keeps stamped evidence you can send. Exhibit A: the stamped photo The evidence camera burns the noise level, the max, the date, the time and the place into every photo and video. Each one is saved to Photos and to the session, ready to send. Exhibit B: the night log Start a recording and put your iPhone down. Loudmark keeps measuring with the screen off for up to 12 hours, marks every time the noise stays above your limit, and keeps a short clip of each one. A Live Activity shows the level and a Stop button on the Lock Screen. Exhibit C: the report Turn any session into a clean PDF: the graph, Leq, max, a table of events, your photos and your notes. Share it with your landlord, the council, your HOA or your employer. Before you start: the number A big live number in dBA, a needle ring and one plain line: "As loud as a vacuum cleaner". Switch to dBC or dBZ with one tap. Min, average (Leq) and max sit under a scrolling graph, with fast or slow response. How far to trust it iPhone mics top out around 95 to 100 dB and can be a few dB off. Loudmark tells you when you're near the limit, and you can calibrate it against a real sound level meter in 0.5 dB steps. Loudmark is not a certified Class 1 or Class 2 sound level meter. On your Home Screen and Lock Screen Widgets show your last session, its max and the level graph. Add the Measure noise control to Control Center or the Action button to open the meter in one press. What stays with you No account. Sound is only saved when you start a recording, and it stays on your iPhone. The place name for your stamp comes from Apple's maps service; your location is never sent to us. What's free Free: the live meter in dBA, dBC and dBZ, the verdict line, the session graph and stats, calibration, one 85 dB alert and the widgets. Loudmark Pro adds the evidence camera, overnight recording with event clips, PDF reports, your own alert level, your own reference sounds, all three weightings at once and the Live Activity: $24.99 a year with a 3-day free trial, $3.99 a week, or $34.99 once. With notifications on, Loudmark reminds you the day before a trial ends. Payment is charged to your Apple ID when you confirm. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Cancel any time in Settings > Apple ID > Subscriptions. Requires iOS 26. Terms of Use (EULA): https://smallwonderapps.com/apps/decibel/terms/ Privacy: https://smallwonderapps.com/apps/decibel/privacy/