Download Distance 7 Alpha

Screenshots of Distance 7 can be found here.

This is an alpha release of Distance. Please test it and report bugs so we can make it better. Although it has been thoroughly tested, there may still be problems, especially with the new simulation and multi-analysis engines.

Note that projects will continue to open in Distance 6 by default and you will be asked to “upgrade” your project when opened in this release. See the release notes below for more information.

Download instructions

Please read the “Use Agreement” below before downloading.

Before installing Distance 7 Alpha, we recommend you read the latest release notes.

After installing Distance 7 Alpha you should check the “Additional information” section, below, for any patches that fix last-minute problems.

If you want to make use of the density surface modelling (DSM), mark-recapture distance sampling (MRDS) or multi-analysis (MA) analysis engines or the simulation engine, you need to have the free statistics software R installed on your computer. Note also that only specific versions are supported: for the versions currently supported by Distance, see below.

Use Agreement

NOTE: this version of Distance is alpha software. By downloading it you will effectively be a “guinea pig” for us. We make no guarantee that everything will work, but please tell us if something doesn’t work in the way you expect, by e-mailing You may also report bugs at the Distance issue tracker.

As a user of this software, you are entitled to copy the program and its associated components for your own or your local institutions use (e.g., university, laboratory, department, research center). You are not allowed to distribute this software under the name Distance or any other name, singly or as part of a package, from which you derive any reimbursement.

Distance contains components and uses technology from many sources: Compaq Computer Corp., ComponentOne Inc., Data Dynamics Inc., Desaware Inc., ESRI, Farpoint Software Inc., IMSL Inc., Microsoft Corp., Polar Software, Sheriden Software Inc. The authors of these components retain copyright over them; however they should not be held responsible for the contents or use of this program, nor should they be contacted with regards to any problems with its use.

We, and our respective agencies, make no warranties, expressed or implied, with respect to this software and its fitness for any particular purpose. In no event will we be liable for indirect or consequential damages, including, without limitation, loss of income or use of information.


We are no longer offering the option to download previous versions of Distance from the website, please e-mail us if you require an installation file for a previous version of Distance.

Once you have downloaded the file, simply run it to launch the setup program, and then follow the instructions displayed on your screen. A reboot may be required, in which case you may need to restart the setup program again.

If you want to make use of the new density surface modelling (DSM) or mark-recapture distance sampling (MRDS) analysis engines, you need to have the free statistics software R installed on your computer. Note also that only specific versions are supported: see below for the versions currently supported by Distance.

Additional information

  • The R libraries supplied with Distance 7 alpha were compiled and tested under R version 3.1.2. Newer versions of R may work, but there is no guarantee of this!
  • If you’re having problems with using the MRDS, DSM and MA analysis engines (errors regarding check that R is installed correctly or the library directory is not writable) then check details of R installation for Distance 7 Alpha.