サウンドチェッカー vs Noise Meter

What's the noise level around you? Sound Checker measures ambient noise levels in real-time using your phone's microphone. - Check apartment noise from neighbors - Measure snoring or teeth grinding volume - Monitor noise at construction sites or events - Check sound levels in your baby's room - Measure quietness of cafes and offices Features: - Real-time dB measurement with large meter display - 30-second waveform graph - Measurement history (min/avg/max dB auto-saved) - WHO noise level guidelines & Japan environmental standards Your microphone is used only for measurement. No audio data is stored or transmitted. Completely free with all features available. Note: This app provides approximate noise level readings using your smartphone's microphone. For legal evidence or precise measurements, please use a professional sound level meter.

Footsteps upstairs, loud neighbors, nearby construction. This app turns "it's too loud" into timestamped, numeric records. Every session is automatically timestamped and cannot be edited afterward. Your records build into a day-of-week × hour heatmap, so patterns like "every night around 11 PM" become obvious at a glance. Select a period and export a PDF report you can hand straight to your property manager or landlord. MEASURE - A-weighted (dBA) sound level meter with live value, average (LAeq), max, min, and peak - Per-second level chart and everyday reference labels - Night mode (dimmed display) for long sessions - Calibration to match an external sound level meter - All measurement features are free. Ads are banners plus an occasional full-screen ad, which one video ad pauses for 24 hours. No ads appear on the meter while you are recording RECORD - Start/stop sessions with automatic timestamps, duration, and metrics - Attach audio clips (up to 60 s), photos, notes, and tags - Optional auto-recording of audio when a session starts - iCloud sync keeps your records safe across devices PATTERNS & EXPORT - Day-of-week × hour heatmap reveals when the noise happens - PDF report export (custom date range, audio files can be bundled) - CSV export that opens cleanly in Excel PRICING - One-time purchase only. No subscriptions - Free: all measurement features plus viewing the last 7 days of records (older records are kept, never deleted) - Full version (one-time): view all records, PDF reports, CSV export, ad-free NOTE This app shows reference values measured with your phone's built-in microphone. Readings may differ from actual levels depending on the device and conditions. It is not a certified measuring instrument. For legally valid measurements, use a calibrated professional sound level meter.