GraphPad InStat is a Home & Education software developed by GraphPad Software. After our trial and test, the software is proved to be official, secure and free. Here is the official description for GraphPad InStat:

GraphPad InStat is a less cumbersome alternative to typical heavy-duty statistical programs. With InStat, even a statistical novice can analyze data in just a few minutes. Try InStat for statistics without all the fuss.

Most statistics programs are designed by statisticians, for statisticians. These programs are feature-packed and powerful, but can overwhelm scientists with thick manuals, obscure statistical jargon and high prices. GraphPad InStat is different. InStat is designed by a scientist for scientists. As reviewed in Science magazine:"InStat takes a kinder, gentler approach...All prompts to the user are in plain English and simple to follow. The program guides the user through a four-step process; defining the data type, entering data, choosing a statistical test, and presenting the results...The user navigates easily through these steps, to lucid and complete output...The Analysis checklists are a masterstroke...This small, but effective package is highly recommended. "John Wass, Statistics, Fast and Easy, Science 282:1652, Nov 27, 1998.