The short version
The calculator runs entirely inside your browser. The share counts and prices you type in are never uploaded to this site, because there is nowhere to upload them to: StockAvg has no database, no account system and no sign-in. There is no file upload box on this site at all — nothing you have is asked for, and nothing you have leaves your device.
What is processed on your device
When you press Calculate, your browser reads the numbers out of the form fields, works out the answer locally in JavaScript and writes the result onto the page. Your figures stay in the memory of your own browser tab. Close the tab and they are gone — they are not saved, not synced and not backed up.
The Copy results button copies the figures to your clipboard on your device. It does not send them anywhere.
What this site does not collect today
- No account and no personal details. No name, email address, password or phone number is asked for.
- No analytics or tracking script. At the time of this update, no analytics service, tag manager, session recorder, heat map or social media pixel is loaded on these pages.
- No advertising script today. At the time of this update, no ad network script is loaded and no advertiser cookie is set by this site.
- No file uploads. There is no upload control anywhere on the site.
Advertising, and what will change when it is added
We intend to place third-party advertising on this site in the future, and this section exists so that you are told before that happens rather than after. When ads are added, the ad company's script will run in your browser and will be able to set its own cookies or similar identifiers, collect your IP address, your device and browser information and the page you are viewing, and use that to select and measure the ads you see. That collection is carried out by the advertising company under its own privacy policy, not by us, and it happens in addition to anything described above.
When that change is made, this page will be updated with the name of the advertising provider and a link to its policy, and the date at the top will change. Until this section names a provider, no ad script is running here.
What our host necessarily sees
This site is served by our hosting provider, so the provider handles the requests your browser makes in order to send the pages back — which means it sees things like your IP address, the page requested and your browser's user agent. That is true of any website you visit and is not something we add. We do not combine that with anything else, because we do not hold any visitor records of our own.
Cookies
At the time of this update, this site sets no cookies of its own. Third-party advertising, once it is added, will set cookies of its own — see the advertising section above.
Children
This calculator is a general-purpose arithmetic tool. It is not directed at children and no information is knowingly collected from anyone.
Changes to this policy
If this policy changes, the text on this page changes and the date at the top changes with it. The previous wording is not kept online, so please read the date before you rely on it.
Email you send us
If you write to the address on the contact page, our mail provider forwards the message to a mailbox that a person reads. That means your email address and whatever you wrote are stored in that mailbox for as long as it is kept. There is no mailing list, no newsletter and no sharing of your address with anyone else. If you want an earlier message deleted, ask in a reply.
Questions
Write to the address on the contact page if anything here is unclear or if you believe this description does not match what the site actually does — that would be a bug worth reporting.