Appdor is a spreadsheet-simple database app builder that runs on Postgres you own — grids, kanban, forms, workflows and dashboards over your own data, self-hosted in one container or hosted by us. Bring your existing bases. Importers for Airtable, monday.com and Quickbase carry the formulas across, not just the rows. Self-host in one command. One compose command brings up the whole stack — app, API gateway, auth, Postgres, storage and the workflow worker — behind a single port, on infrastructure you control. Every view on every tier. Views, charts, dashboards, reads and exports are available on all plans; editor seats and resource allowances are what differ. A self-hosted install runs a thirty-day Business trial from first boot, then becomes read-only until a licence is installed. Isolation you can check yourself. Row-level security or database-per-tenant, per-table grants, field-level permissions and a four-role hierarchy — all enforced in the database, with scripts that prove it on a running deployment.