Software
When downloading the models, please be patient, as many of these files are large in size and might take some time to download depending on your internet connection. Please email us at epicapex@brc.tamus.edu if have any problems downloading our models or model tools.
Looking for older software not listed on this page? Check out the archive for earlier versions.
Executables
The release of the models is restricted to those researchers and individuals working with the modeling team to enhance scientific understanding or application of the model. We encourage those with interest in the model or modifying the model to contact us at epicapex@brc.tamus.edu.
The software is not for commercial use and is covered by the GNU General Public License agreement. By downloading the software, you agree to those terms.
APEX
- APEX1501 for Windows OS (updated August 2026)
- APEX1501 for Linux OS (updated August 2026)
- WinAPEX for APEX v.1501 (October 2016)
- QAPEX (QAPEX is comprised of two programs: QAPEX1.2.1 and APEX-EDITOR_9_12_25)
- QAPEX v.1.2.1 installer
- QAPEX user manual
- APEX-Editor installer
- APEX-Editor user manual
- Note: First, install APEX-EDITOR, then install QAPEX. While installing QAPEX, QAPEX will ask for the path to APEX-EDITOR.
- APEX-CUTE v8.0 for APEX1501
EPIC
- EPIC v.1102 – (current supported version - May 2025)
- WinEPIC for EPIC v.0810 (June 2016)
- EPIC v.0810 for Linux
- GeoEPIC (GeoEPIC expands the capabilities of the EPIC crop simulation model by leveraging RS products and geospatial databases.)
Source Code
- APEX source code – contact us
- EPIC source code – contact us
Supporting Tools
- APEX Editor v.2203 – Compatible with APEX v.1501 (March 2022)
- WXGN v.0722 (stand-alone weather generator - July 2022)
- WXPM v.3020 (monthly weather statistics generator - Last Update 08 March 2019)
- Weather Import (CW Analyzer)
- EPIC v.0810 Editor – PLEASE NOTE: the EPIC editor is fully functional on the latest EPIC v.0810. However, it may not be compatible with older versions of EPIC. This download includes one set of example EPIC data file sets.