The verdict
For a small team that wants to connect its CRM, forms, chat and spreadsheets, pick Make. It handles routers, loops and error handling, and the free plan lets you test your most complex scenario first. Pricing is by credits, not seats, so adding a colleague costs nothing extra.
If your process is a document that has to be generated, negotiated, signed and filed the same way every time, pick airSlate. I would also pick it when the people building the flow are in operations or legal and not technical. If you only need one signature now and then, neither is the right buy.