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I am looking for people to test an acid-base equilibrium app for iPhone and iPad.  A description can be found at

Question asked by David Hatfield on Aug 24, 2015

The app is based on the old 'Equilligraph' graphical methods. It combines graphs with numerical results.


It is in beta test now, and I am looking for people to beta test it and provide feed back


with background info at


The Equiligraph : Revisiting an old tool