Hi JuanRestrepo,
Sorry for the delay in response.
If you have the internet access, you could use Centrify CIS for the deployment of .pkg files to the mac. Besides deploying the softwares, you could choose either install the package automatically or manually, which means we will help to do the update if the package deployed is newer than the one installed. For more information, you could refer to the below link:
Please note that the behavior for mac downloading/installing the software will depend on how the application vendor signed or packed the package. Some packages may not be accepted by the Mac if the signing or the pack method using a incorrect format which is an actual package issue.
Hope this helps.
Kind Regards,
Albert