Support Vastorae
Vastorae stays free to use—no accounts, no paywalls on the tools themselves. Hosting, domains, and ongoing maintenance are funded by light advertising and optional reader support.
Donate (optional)
If a calculator or guide saved you time, you can buy us a coffee. It is completely optional and does not unlock extra features—everyone keeps the same free access.
Support on Ko-fiAdvertising
We may show ads on some tool and guide pages after the main content. Ads help cover infrastructure so the tools can stay free. We do not sell your calculator inputs; see the Privacy policy for how cookies and ad partners work.
Affiliate disclosure
From time to time we may recommend products or services we use ourselves. If those recommendations include affiliate links, we will mark them clearly and use rel="sponsored" / nofollow where appropriate. We only recommend things we would use ourselves; a commission never changes our tool formulas or editorial standards.
We do not currently maintain a public affiliate catalog. When we do add curated picks, they will appear on this page with context—not as empty placeholders.
Questions?
Bug reports, partnership questions, or tool ideas: use Contact or email vastorae@gmail.com. Read more about the project on About.