What Superset does
Apache Superset is an open-source data exploration and visualization platform released under the Apache License. It is designed for analysts and business users, as well as teams that install, operate, and build on it. Users can create charts with a no-code builder or write SQL in SQL Lab. Named features include dashboards, physical and virtual datasets, data caching, Jinja templating, dashboard filters, CSS templates, a semantic layer, cross-filters, drill-to-detail, drill-by, and feature flags. The page cites 40+ pre-installed visualization types and connections to SQL-based databases. It does not state a pricing model.
How Superset compares with its closest alternatives
All 5 closest alternatives have a free plan, as Superset does. Only Metabase lists a starting price, $500 a month. All 5 offer an API, as Superset does. Superset offers a web app and a desktop app. Of the alternatives, all 5 offer a web app and 4 offer a desktop app. Superset was founded in 2015; the alternatives were founded between 2013 and 2021, 2 of them earlier. The alternatives with a known headquarters are in the United States, the United Kingdom and Canada.