Obtaining Instat

The full version of Instat may be downloaded and used for non-commercial purposes by any individual free of charge. There is no copy-protection, time limit or data size restriction, other than Instat's inherent size limitations.

Instat can be supplied on a CD, for which there is a minimum charge of £40. When the software is supplied on CD, a printed copy of the tutorial (pdf, 679KB) is also provided.

Get Instat (version 3.36) now.

A beta-test version of Instat (vers 3.37) is available here. This version fixes a bug related to 29th February.

Licensing, costs and terms of use

Individuals may use Instat at no cost, provided that it is for non-commercial purposes.
Read the full terms and conditions (pdf file).

Instat must be licensed for multiple, government and commercial use. The current rates are given below. Special deals are available for schools and for organisations in developing countries. If required, please use this Order Form.

Licence fees (in £ sterling) for Instat

  Non-commercial use Commercial/Government use
Individual (single PC): zero £250.00
Group (<=8 PCs): £250.00 £500.00
Department (<=25 PCs): £500.00 £1000.00
Site (<=100 PCs): £1000.00 £2000.00
Large Site (<=1000 PCs): £2000.00 £4000.00

Please note that VAT should be added for purchases made within the UK.

What is Instat?

Instat is a general statistical package. It is simple enough to be useful in teaching statistical ideas, yet has the power to assist research in any discipline that requires the analysis of data.

Instat began life on a BBC microcomputer. It was first used on a training course on 'statistics in agriculture' held in Sri Lanka during 1983. The BBC micro version was marketed commercially from mid-1985, with the DOS version for PCs becoming available in 1987. From 1994 Instat was free-of-charge. Updated DOS versions were released in 1996 and 1997.

Instat has been used widely in the UK and elsewhere by a range of companies, research institutes, schools, colleges, universities and private individuals. At Reading it has been used extensively on training courses run by the SSC. It has also been used in many countries on statistics courses and on courses related to health, agriculture and climatology.

'Instat+' (i.e. the Windows version of Instat) has been developed mainly because of its continued use for the analysis of climatic data. Funding from the UK Met Office for a new climatic version, supplemented by support from the SSC and the efforts of other friendly collaborators, led to the Windows version, which was first used on training courses in 1999.

Possible roles for Instat

Instat could be your first statistics package

Are you currently using a spreadsheet, such as Excel, for all your statistical work? If so, there's no need to stop using Excel, but you may wish to consider adding a statistical package to your software repertoire. You could start by using Instat for free.

  • Instat provides a relatively gentle introduction to using statistics packages
  • Instat can be a useful "stepping-stone" towards other, commercial, statistics packages.

Are you teaching statistics, or trying to learn statistics yourself?

Instat is designed to support the teaching of statistics. It includes features to help explain many of the key concepts, such as confidence intervals, that users often find confusing.  Furthermore, our teaching menu provides a resource pack of ideas, some that use Instat, but many that can be used with any statistical software.

  • Instat can be installed easily
  • Instat has a familiar interface, similar to other statistics packages
  • Instat enables users to concentrate on the statistical ideas, rather than on mastering the software
  • Instat is well-suited for use as a demonstration tool during lectures.

Instat for the analysis of climatic data

Instat includes many special facilities for the processing of climatic data, supported by a 400 page guide, included with the package as a help file. These facilities have formed the basis of numerous agroclimatology training courses, in the UK, Kenya, Niger, Algeria, Syria, the Philippines and elsewhere.


Instat+ is currently only available for Windows and has been tested with Windows XP, Vista and Windows 7. Mac users who wish to use Instat can either install windows using Appleā€™s BootCamp, or using virtualisation software such as VirtualBox or Parallels Desktop.

Further enquiries

For questions about Instat, contact us by e-mail

Last updated: 25 March, 2013

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