dB Calc — Versions | Marlvel

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v4.0Android
Feb 26, 2026
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Modern UI. Help view added.
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v3.0iOS

Jul 9, 2025

Changes and improvements for new iOS updates.

v2.0iOS
May 4, 2022
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Updates for latest iOS
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v1.6iOS
May 9, 2017
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Updates for iOS 10.3
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v1.5iOS
Oct 28, 2013
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Updates for iOS 7
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v1.4iOS
Jan 4, 2013
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Updates for iOS 6
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v1.3iOS

Jun 26, 2010

Added RMS (root mean squared) calculations for sine, square, and triangle waveforms.

Universal app for the iPad.

v1.2iOS

Sep 2, 2009

Changing the resistance will now update the power, voltage, and decibel fields.

v1.1iOS
Apr 30, 2009
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Added conversions to and from dBmV
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