Running Spark 129 yourself means owning clusters, images, upgrades and security. Every major cloud sells that work as a service, priced in its own unit. None of the platforms below offers a no-cost tier that can run BookNest's jobs, so this section is not run here: the descriptions and prices come from each vendor's pricing pages on 2 October 2026 (US regions, list prices, before discounts) and will change, so check them before you decide.