There was a download of DSAS 4.3 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular version of the program is 4.3.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. DSAS lies within Education Tools, more precisely Science Tools. This free PC program is developed for Windows XP/7/8/10/11 environment, 32-bit version. The program's installer is commonly called ReadRFID2018.exe. This free software was originally developed by U.S. Geological Survey.
From the developer:
The Digital Shoreline Analysis System (DSAS) is an application that enables a user to calculate shoreline rate-of-change statistics from multiple historic shoreline positions. DSAS computes shoreline rates of change using four different methods: endpoint rate, simple linear regression, weighted linear regression, and least median of squares.
You may want to check out more software, such as The Official DSA Theory Test for Car Drivers, Digital Shoreline Analysis System or Dennisse Stock Analyzer, which might be related to DSAS.