Last updated: November 8, 2026
Using the site
ABFinal's calculators and guides are free for personal and commercial use, including client work. No account is required.
No warranty
We work hard to make the calculators accurate and test them against independent references, but the site is provided "as is", without warranties of any kind. Calculations are statistical estimates based on the numbers you enter and on assumptions explained on each page and on the methodology page.
Not professional advice
Results and guides are general information, not business, financial or legal advice. Decisions about pricing, product changes or advertising are yours. Pages that mention legal topics, such as price testing rules, describe issues to look into, not legal conclusions for your situation.
Limitation of liability
To the extent the law allows, ABFinal isn't liable for losses arising from use of the site or reliance on its results.
Content
The text, design and code of this site belong to ABFinal. You may quote short passages with a link back. Please don't republish whole articles or rebrand the calculators as your own.
Product and company names mentioned belong to their owners. Mentioning them doesn't imply endorsement or affiliation.
The previous app on this domain
These terms cover the current ABFinal site only. They don't cover the Shopify app previously offered on this domain by a different business, and we can't take on obligations from it.
Changes and contact
We may update these terms and will change the date above when we do. Questions: contact@abfinal.com.