David Ngo

Latest Release

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  Sound Meter by nTechApps

  Measure noise level in dB

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iPad & iPhone

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  Sound Meter by nTechApps

  Measure noise level in dB

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  QR Code Generator by nTechApps

  Generate QR Code image

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  Barcode, QR Code Scanner

  Utilities

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  units-converter

  Utilities

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