Addigy doesn't support uploading entire directories at once--uploads must be individual files. This means that a .app file, which is technically a directory, must be first compressed into a single file before uploading into a Custom Software item within Addigy. For most .app installations, simply copying the directory into the /Applications folder will complete the installation.
Deploying .app Files
Using Google Chrome.app as an example, the following commands can be run on a device to compress the .app into a tar.gz format.
cd "/Volumes/Google Chrome" tar -czvf ~/Desktop/chromeapp.tar.gz "Google Chrome.app"
This generates the file 'chromeapp.tar.gz'. Upload the file to the Custom Software in Addigy.
Add the following Installation Script to the Custom Software to extract the .app to the /Applications folder on the device(s) it's deployed to.
tar -zxf chromeapp.tar.gz -C /Applications/
Note: using the 'v' flag in the tar extraction command can delay the deployments of the policy and software enforcement.