DataPlot

Version: 1.0.2 || Release Date: 2006-12-13 || License: Commercial with demo (29$) Developer: Visual Data Tools, Inc. | App Owner: malte

An intuitive and powerfull tool for 2d plotting (line, scatter, histogram, function), curve fitting and animated plots.

The demo is not time limited and offers a great number of functions (I couldn't yet figure out what the limitations of the demo are).

Plots look very professional.

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2 Opinions

I think the program has been renamed to DataGraph, but else it seems to be still the same:
http://www.visualdatatools.com/DataGraph/index.html

The limitations of the demo are that you cannot export the graph as a graphic or print the graph. Of course you can always take a screen grab of a maximized graph and print it, but it's a little bit of a hassle.

That said, this is an extremely intuitive data plotter that produces excellent 2d graphs. This completely eclipses Excel for scientific plotting, if only for the ease of use.