Action(s) comes with dozens of prebuilt actions you can use to populate your workflows.
License: Free
Automator is an application that implements point-and-click (or drag and drop) creation of workflows for automating repetitive tasks into batches for quicker alteration, thus saving time and effort over human intervention to manually change each file separately. Developed by Apple
License: Commercial
Action(s) is designed for simplicity and ease of use, making it ideal for quick automation tasks on iOS devices. In contrast, Automator offers more powerful scripting capabilities and flexibility, making it suitable for more complex workflows on macOS.