Decibel: Noise & Sound Meter

dB SPL Dose & Level Detector

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Honest pricing — about half the price of the leading sound meter apps, no weekly traps. Measure noise, track your daily dose, and export clean dB reports. The honest sound level meter that tracks your real noise exposure. Turn your iPhone into a real-time dB(A)/dB(C) sound level meter — live waveform, peak, average, and Leq — then watch it roll into your daily NIOSH/OSHA noise dose. Fair pricing, no weekly traps. ▸ MEASURE SOUND INSTANTLY Open the app and start reading in real time — no setup, no sign-up. • Live dB(A) gauge + scrolling waveform — see the room react as it happens • Min, average, max, peak, and Leq — the numbers a real meter shows • "How loud is this?" scale — from rustling leaves to a jet engine • Clear Start/Stop and named sessions — measure, save, and revisit ▸ KNOW YOUR NOISE EXPOSURE Most apps stop at a single number. Decibel tracks how that noise adds up. • Daily noise-dose ring — NIOSH (85 dBA) and OSHA (90 dBA) standards • Loud-event alerts — a heads-up when sustained sound crosses 85 dBA • Exposure timeline + charts — see your week, not just this second • TWA and total exposure time — the metrics that matter for your hearing ▸ ACCURATE & TRUSTWORTHY Built to read honestly — and to tell you when it can't. • Measurement-mode capture — disables auto-gain for stable readings • Mic calibration offset — fine-tune against a reference meter • A, C, and Z weighting — dBA for hearing, dBC for bass and peaks • CSV & PDF reports — clean exports for complaints, work, or your records ▸ FAIR, HONEST PRICING The category's loudest complaint is price. We fixed that. • About half the price of the leading sound meter apps • No weekly traps, no à-la-carte unlock packs • A genuinely useful free tier — the live dBA meter is always free ▸ FREE VS PREMIUM FREE: • Live dB(A) meter with waveform, peak, average, and Leq • Today's noise dose • Your last 3 saved sessions PREMIUM unlocks: • Unlimited measurement history • dBA, dBC, and dBZ weighting + mic calibration offset • Full exposure timeline with charts • CSV & PDF noise reports • Zero ads ▸ PREMIUM SUBSCRIPTION Decibel Premium is available with the following subscription options: Monthly: $4.99/month Annual: $24.99/year — includes a 7-day free trial Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Terms of Service: https://decibel.bulpara.com/terms Privacy Policy: https://decibel.bulpara.com/privacy ▸ A NOTE ON ACCURACY Decibel is not a certified Type 1 or Type 2 sound level meter and is not a medical or hearing-diagnostic device. iPhone microphones are factory-calibrated and typically read within a couple of dB of professional meters, and the calibration offset improves them further — but for legal, occupational, or clinical decisions, use certified equipment. Questions or feedback? support@bulpara.com

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

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Identifiers
    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
BULPARA TEKNOLOJI LIMITED SIRKETI
Size
6.3 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • Premium Annual $24.99
  • Premium Monthly $4.99
  • Learn More
Copyright
© 2026 Bulpara
  • Developer Website
  • Privacy Policy

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