Data sources, connectors & refresh
How this is scored
Which data the product can reach and how it stays current: native connectors to databases and warehouses (PostgreSQL, MySQL, SQL Server, BigQuery, Snowflake), to business applications (accounting, ERP, CRM, shop, help desk, ad platforms) and to files and spreadsheets (Excel, CSV, Google Sheets), live queries versus imported extracts, scheduled and incremental refresh with its minimum interval, joining data from several sources, light data preparation, access to databases behind a firewall (gateway, SSH tunnel, IP allow-list), and a generic REST or custom connector for what is not listed.
0 — Not a reporting product, or data can only be typed or pasted in by hand.
3 — Spreadsheet and file uploads plus a handful of named connectors; refresh schedules, live queries and blending sources are basic or not described.
5 — A published connector list covering the common databases, warehouses, spreadsheets and several named business applications, scheduled refresh with its interval stated, live queries or extracts at the customer's choice, data from two sources combined in one report, and a documented way to reach a database behind a firewall.
8 — Hundreds of maintained connectors or a full SQL layer over every major warehouse, incremental refresh and caching explained, a built-in data preparation or modelling step, a gateway or agent for on-premise sources, a generic REST or custom connector SDK, and connector limits (rows, API calls, history) stated per plan.
10 — Connectivity an organisation can standardise on: every source reachable live or by extract with the trade-offs documented, refresh down to minutes with lineage from report back to source, source changes detected and reported, and connector behaviour, quotas and failure handling published.
The Skeptic
The documented list is databases and warehouses: a dozen-plus SQL sources with Oracle, Qubole and Druid named by the vendor as not supported, and spreadsheets reachable only by loading them through your own SQL database; we found no public information on business-application connectors for CRM, ERP or ad platforms or on a generic REST connector. What is documented is documented well — reverse SSH tunnel and IP whitelist for firewalled databases, real-time push-down queries against your warehouse with a cache whose ten-minute minimum expiry is stated, and named persistence modes with their unsupported databases listed. Refresh intervals are described only for Slack delivery schedules, and we found no public information on per-plan connector quotas. 6 9 13 14 15