Trust
Sources and method
This site does not invent rates. Every numeric claim is sourced to a primary URL with a pull date - visible inline as a small ↗ caret. Pricing changes are tracked at /changelog. Vendor pricing pages are re-verified monthly; market structure changes (mergers, acquisitions) are tracked as they happen.
How calculator math is validated
The TCO calculator multiplies a per-vendor $/M-MAR rate (derived from each vendor's published pricing page) by a sync-frequency multiplier and adds a warehouse-compute-tax percentage. The percentages come from Snowflake / BigQuery / Databricks documentation and from reproducible worked examples on small test workloads. When a vendor publishes only ranges, the calculator uses the published mid-point and marks the line as "est" in the output.
Worked example, because Airbyte changed its unit in 2026 and the old derivation no longer applies. Airbyte retired the $/GB meter and now prices in credits. Its own pricing calculator equates 40 credits to 6,640,000 API rows, which is 166,000 rows per credit, and the marginal Standard credit costs $5. One million rows is therefore 1,000,000 / 166,000 x $5 = $30.12, and the calculator carries $30 per million rows for Airbyte Cloud.
Where a vendor has stopped publishing a price, this site publishes no number in its place. Meltano and every Rivery tier above Base are quote-only as of 22 September 2026, so their vendor pages carry no mid-market estimate rather than an invented one.
Primary sources
Editorial policy
- › British spelling. The author is British.
- › No em-dashes. Sentences are short and assertive.
- › No marketing adjectives ("revolutionary", "game-changing", "powerful").
- › No vendor sponsorship. No paid placement. No vendor reviews of the content.
- › Corrections requested at oliver@digitalsignet.com.
Written by Oliver Wakefield-Smith, Founder of Digital Signet. Independent reference, no vendor sponsorship.
Sources logged at /sources. Pricing-change history at /changelog. Last reviewed 2026-09-22.