I also question charging for App features when the App seems to depend on user input to add descriptions in order to improve its usefulness. If these are added in a future release I hope that the developer adds adequate warnings and with administrative access as deleting some process that are not user processes could damage the operating system and require a reinstall. These are the ability to kill a process and the ability to delete it within the App. Two desired features is missing from this App. This 'Bait & Switch' is what driving a lower 'star' rating in my review. Unfortunately the developer does not list the optional paid features or the cost on their website or in the App description so that the user can make an informed decision before installing the App.

So a full functioning App is not really free.

The purchase is for removing left over files from uninstalled Apps and costs $5.00. It seems to depend on user feedback for descriptions of the processes, which, if present, can be useful in identifying what a process is for. This is a handy tool for finding out the processes that are running with a more informative display than Activity Monitor.

Mac os process monitor sandboxd