The same workflow, three completely different bills
Take a workflow that reads a form submission, checks a record, updates a spreadsheet, sends an email and posts a notification. That is five steps. On a platform that bills each successful action, running it a thousand times a month consumes five thousand units. On a platform that bills each module action inside a scenario, the count is similar. On a platform that bills one execution per run regardless of length, the same workload consumes one thousand. The ratio here is five to one, and it comes purely from how the vendor counts, not from anything about the work. Now imagine that workflow grows to fifteen steps, as they always do. The ratio becomes fifteen to one, and a decision that looked marginal at signup becomes the dominant cost line. This is why we refuse to recommend a platform before counting.