Airtable is not really that -- it does not do much/anything in the way of calculations or aggregations. I love it and it's great for creating very structured ways of managing data, but it can't do even very basic aggregations.
This in principle accurate, but the real story is less polished. If you look through the AirTable forums, you’ll see lots of cases where users are asking how to do a thing, and are told to abandon the highly limited scripting and to use JavaScript. This is what I characterize as a learning cliff.
Looking at UltOrg's website, it is not like Airtable. It's not a spreadsheet or spreadsheet interface (though I suppose it could be used that way); it is a much more automated, sophisticated UI for complex relational data. It looks very impressive.
That's how AirTable is described as well. And Google Tables. And Amazon Honeycode.