Visual Fitting is a easy-to-use software for data fitting. It can be used to implement linear, nonlinear curve fitting and surface fitting.

Visual Fitting Features:
1. Implement curve fitting and graphing of linear models and nonlinear models.
2. Implement surface fitting and graphing of any binary function models.
3. Excel-like data editor is easy to use.
4. Ability to move, zoom in, zoom out and rotate the graphs in plot area.
5. Ability to save graphs as bmp file.

Limitations:
* some functions are disabled

The license of this software is Free Trial Software, the price is $80.00, you can free download and get a free trial.