More » Carambis Software Updater doesn't support direct downloads, which means the update results display in your internet browser after a scan is performed, much like File Hippo App Manager.
From there, you must click a couple download links to get to the final one that lets you save the program installer to your computer.
Note: By no means do you have to use a software updater to update your outdated software.
Checking for a new version yourself, and then downloading and updating manually, is certainly an option.
This means you can have Heimdal monitor some but not update them, or not monitor or update others - it's totally up to you.