ARCQ SPL - SPL Meter

Utilities

$5.99

SPL Meter turns your iPhone or iPad into a precision sound pressure level meter for musicians, audio engineers, AV techs, and anyone who needs to know how loud it really is. Built around real-time A- and C-weighted measurement, SPL Meter shows the readings the pros actually use — not a single number, but a full panel of simultaneous metrics. MEASUREMENTS • LAS / LCS — A- and C-weighted level with SLOW or FAST time weighting • LAeq / LCeq — equivalent continuous level over your chosen averaging window • LCpeak — true C-weighted peak, instant and max-hold • TWA — time-weighted average for noise-exposure style monitoring • Instant, average, and max-hold values side by side LIVE SPECTRUM • Real-time octave-band spectrum analyzer • Drag across the display to read the level at any frequency • Double-tap to expand for a full-screen view FLEXIBLE INPUT • Use the built-in microphone or any connected USB, Bluetooth, or headset input • Multi-channel interfaces supported — pick the exact input channel • A/B capture: freeze two readings and see the difference DESIGNED FOR REAL WORK • Choose your averaging window to suit the room and the source • Custom thresholds and profiles • Clean, high-contrast layout that reads at a glance on stage or in the field • Universal — optimized for both iPhone and iPad PRIVATE BY DESIGN SPL Meter does all processing on-device. Audio is never recorded, saved, or transmitted. There are no accounts, no analytics, no tracking, and no ads. A NOTE ON ACCURACY Like any phone-based meter, readings depend on your device's microphone and are not a substitute for a calibrated Class 1/2 sound level meter for compliance work. SPL Meter is a powerful, consistent tool for monitoring, comparison, and setup — not a certified measurement instrument.

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• New: Tap the input button to open a picker sheet with a live signal meter — confirm your mic or interface is actually receiving signal before you measure. • New: Profile selector now shows each preset's LAeq zone thresholds at a glance. • macOS: Calibration offset field now accepts keyboard input correctly; double-click the slider knob to reset to default. • Bug fixes and stability improvements.

Version 1.2

The developer, jiyeol bae, 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 Not Collected

    The developer does not collect any data from this app.

    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
    • jiyeol bae
    Size
    • 717.8 KB
    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 12.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 JRB LAB
  • Privacy Policy

    • Supports

    • Family Sharing

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