Downloading AstroGrav 1.9.4
AstroGrav 1.9.4 (December 2011) was the final release in the AstroGrav 1.x.x series, and so may be of use to you if you've already got a license for AstroGrav 1 and don't wish to upgrade to AstroGrav 2. You can download the software or sample simulations by clicking on one of the links below.