The Nernst/Goldman Equation Simulator provides a visualization of the Nernst and Goldman potentials given user-defined values for the relevant parameters. Users may adjust the permeability, extracellular concentration, and intracellular concentration of potassium, sodium, and chloride ions and observe the resulting changes, in real-time, for the electrical potential difference as calculated using the selected equation. Preset values are provided for common cell types.​

What’s New

Version 2.0

This app has been updated by Apple to use the latest Apple signing certificate.

Users can now save custom measurement presets for later use. A knowledge base has been added to assist in understanding the concepts behind the Nernst and Goldman equations.

App Privacy

The developer, University of Arizona, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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