Legal

Privacy Policy

Last updated: October 2026

TailsNow ("we", "us") operates tailsnow.com. This page explains what data we handle and the choices you have. The short version: the coin toss itself is processed on your own device and never leaves your browser.

Scope of this policy

The tool this page covers is TailsNow, a coin flip. Put simply, it flips a fair virtual coin with a real flip animation and tracks the head and tail history, and the way it does so is this: it draws each flip from the browser's cryptographically secure random source rather than a pseudo-random seed, so the sequence is not predictable from earlier flips, and it reports the running ratio of heads to tails so a fair coin visibly converges. Everything stated here applies to that tool and the values it handles, and to nothing else.

Practically, all the calculation needs is the coin toss itself. Typical reasons people open TailsNow include showing a class the law of large numbers, and in every case the work happens on the visitor's own device rather than ours.

What you enter

All processing happens on your device. Your input is handed to the page's own script, a result comes back, and that is the whole exchange. No request leaves your machine, and no copy of what you entered exists once the tab is closed.

How long data is kept, and how it is protected

There is nothing of yours to keep, so there is no retention period to describe for calculator input: it exists only in your browser tab and disappears when you leave. The site is served over HTTPS throughout.

Children's privacy

Nothing here targets users under 13. If a child has sent personal details through the site, tell us and we will delete them.

Rights you can exercise

Privacy law in some regions gives you the right to see, correct, delete or restrict the use of personal data held about you. In practice we hold almost nothing tied to you, since calculator input never reaches us, but any request you make will be taken seriously.

How this policy changes

We may update this page as the site changes. Material changes are reflected in the "last updated" date above.

Automatic technical data

Our host and any analytics we run record routine request data — the kind every web server sees, such as IP address, user agent, referrer and which pages were opened. That data serves maintenance and abuse prevention; it is never combined with the values you enter.

How cookies and adverts work here

We use one first-party cookie for the consent choice and nothing more. Any other cookies come from advertising partners outside our control; they can be blocked or deleted in your browser, and doing so costs the tool nothing, because the calculation is independent of them.

Analytics and aggregate statistics

Analytics on tailsnow.com are limited to counting: visits, a rough location and which tools are opened. The figures are aggregated rather than tied to a person, and none of them carries what you typed.

What you type stays local

Whatever you type is used to draw the answer and then forgotten, because it was never stored in the first place. Refreshing the page clears anything still on screen.

Getting in touch about privacy

Any question about this policy is welcome through the contact page, or you can write to support@tailsnow.com.