Where the prices come from
Every number is read from the provider's own pricing page or documentation, never from comparison sites. The date of the last check is on the calculator, next to the results. Prices are in US dollars without VAT, as the providers list them. When a provider announces a change, it goes into the migration watch and the numbers are updated.
Only sizes confirmed on those pages are used. If your workload needs a size that isn't in the table, the row says so instead of extrapolating.
What the estimate leaves out
Build minutes, log retention, backups, extra IP addresses, support plans, regional price differences (Fly.io's Frankfurt region, for example, costs about 15 % more than Ashburn) and free trials. For usage-billed platforms the estimate is only as good as your guess of the average load.
Who makes it
deploys.run is made by Alexey Zhuchkov, a DevOps engineer in Barcelona, Spain. Corrections, especially price changes, are welcome at hello@deploys.run.
The site has no affiliate links yet. If it adds some, they will be marked, and they will never change the order of the results: the table is always sorted by price.
Privacy
The calculator runs in your browser; nothing you enter is sent anywhere. There is no sign-up and no tracking cookies. The site is hosted by Cloudflare, which keeps technical logs (IP address, requested page) for a few days for security, as a data processor. Visits are counted with Cloudflare Web Analytics, which uses no cookies or identifiers. Controller: Alexey Zhuchkov, contact above. Legal basis: legitimate interest in running and securing the site. You can exercise your rights of access, rectification, erasure, objection, restriction and portability by writing to hello@deploys.run, and complain to the Spanish Data Protection Agency (aepd.es).