DeciCheck - Decibel Meter

Sound Level & Noise Meter

Only for iPhone

$2.99 · Designed for iPhone. Not verified for macOS.

iPhone

Real-time decibel meter for noise complaints, workplace checks, and home audio. One-time purchase, no ads, no subscription. CSV/PDF export for evidence reports. Measure real-world noise levels instantly - one-time purchase, no subscription, no ads, 100% offline. DeciCheck is the no-nonsense decibel meter for anyone who needs to measure, document, and prove noise levels. Whether you're building a case against a noisy neighbor, checking workplace machinery for safety compliance, or simply curious how loud a venue is, DeciCheck gives you accurate, exportable readings from your iPhone. THREE WEIGHTING MODES - ALL FREE dBA (human-hearing weighted), dBC (low-frequency weighted), dBZ (raw unweighted). Unlike competitors who lock dBA behind a subscription, DeciCheck gives you all three from day one. LIVE HISTORY CHART Watch noise levels trend in real time with a scrolling dB chart. Min, Max, and Leq (equivalent continuous sound level) statistics update live during every session. CALIBRATION OFFSET Adjust the +/- 30 dB offset to match a professional reference meter, compensating for your iPhone model's microphone sensitivity. SESSION RECORDING Start a session, give it a name and note (e.g. "Upstairs neighbor at 11 PM"), then save it. Browse your full history in the Sessions tab. CSV AND PDF FORENSIC EXPORT Export any session as a timestamped CSV or a formatted PDF report with stats and chart. Share directly with landlords, property managers, HOA boards, or HR - the report is designed for real disputes. SOUND LEVEL REFERENCE TABLE A built-in guide from 10 dB (rustling leaves) to 140 dB (explosion) helps you understand what your readings actually mean. WHY DECICHECK? - $2.99 one-time purchase, no recurring fees, ever - All audio processed on-device; never recorded, stored, or transmitted - No ads, no analytics, no third-party SDKs - Works in airplane mode - Supports iPhone and iPad (iOS 17+) Disclaimer: DeciCheck provides reference measurements and is not a certified or professional sound level meter (IEC 61672). For legal or occupational certification, use a calibrated instrument.

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The developer, 岩 薄, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    岩 薄
    Size
    955.4 KB
    Category
    Utilities
    Compatibility
    Requires iOS 17.6 or later.
    • iPhone
      Requires iOS 17.6 or later.
    • Mac
      Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.3 or later.
    Languages
    Japanese and 3 more
    • Japanese, Korean, Simplified Chinese, Spanish
    Age Rating
    4+
    Copyright
    © 2026 Yan Bo
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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