Privacy Policy
Last updated: September 2026
This policy explains what happens to information when you use sellarithm.com. Sellarithm's calculators are the main purpose of this site, so most of this policy is about calculator inputs and basic site analytics rather than accounts, purchases, or personal profiles — Sellarithm doesn't have those.
Calculator inputs
The numbers you type into a Sellarithm calculator — prices, costs, fees, and similar figures — are processed directly in your browser using JavaScript running on your device. They are used only to calculate the result shown on the page. Sellarithm does not require an account to use any calculator, and calculator inputs are not intentionally collected, stored on a server, or linked to you personally by Sellarithm.
Information you provide voluntarily
If you contact Sellarithm by email, you'll naturally share whatever information you choose to include in that message — such as your email address and the contents of your message. That information is used only to respond to you and is not sold or shared with unrelated third parties.
Cookies and analytics
Sellarithm does not currently set its own tracking cookies. If Sellarithm adds a website analytics service in the future (for example, to understand which calculators are most used, or to fix broken pages), this policy will be updated to name the specific service used and what it collects. Any hosting provider or content delivery network serving this site may automatically log basic technical information (such as IP address and browser type) as part of standard web server operation — this is common to virtually all websites and is not specific to Sellarithm.
Advertising
Sellarithm does not currently run advertising on this site. If that changes, this policy will be updated to describe what's shown and, where applicable, which third-party ad providers are involved.
Third-party services and external links
Sellarithm's calculators reference marketplaces such as Etsy and may link out to their official pages for reference. Sellarithm doesn't control those external sites and isn't responsible for their privacy practices — check their own policies directly. This site is hosted using standard third-party web hosting infrastructure, which necessarily processes basic connection data (like IP addresses) to serve the site to your browser.
Data retention
Contact emails are kept only as long as reasonably needed to respond to and resolve your inquiry. Calculator inputs are not retained by Sellarithm at all, since they're processed in your browser and never sent to a Sellarithm server in the first place.
Your rights and contact
If you have questions about this policy, or want to ask about any information you've sent to Sellarithm (such as a contact email), reach out via the Contact page.
Changes to this policy
This policy may be updated as Sellarithm's tools, hosting, or any future analytics or advertising setup change. The "last updated" date at the top of this page reflects the most recent revision. Continued use of the site after an update means you accept the current version of this policy.
Questions about this policy?
Get in touch — or read the Terms of Use and Disclaimer.