Cookie Policy

Last Updated: 05 September 2026

This notice explains the cookies trader-biz uses, what each one does, and how you control them. It covers our website and app at trader-biz.app.

A cookie is a small text file stored in your browser when you visit a site. Some last for a fixed period ("persistent" cookies); others are deleted when you close your browser ("session" cookies). We keep our use small and specific, and this page lists every cookie we set.

We use two kinds of cookies.

Essential cookies keep the site working and secure — they are always on, because the site can't function without them.

Analytics and attribution cookies are set only with your consent. They help us understand how the product is used, and which of our marketing channels bring people to us — so we know what to improve and where to spend our marketing budget.

These make the site work and keep it secure. They don't track you, and the site can't function properly without them, so they are always on.

sessionid

What it does: Keeps you signed in as you move around the app How long it lasts: 2 weeks

csrftoken

What it does: Protects forms against cross-site request forgery

How long it lasts: 1 year

analytics_consent

What it does: Remembers the choice you made on our analytics

consent banner

Including a choice to accept/decline Analytics and attribution cookies

How long it lasts: 1 year ph_reset_pending

What it does: A 10-second flag that clears the analytics identity from your browser when you log out, so nobody else using the device is linked to your activity

How long it lasts: 10 seconds

_GRECAPTCHA (set by Google)

What it does: Google reCAPTCHA, which protects our login and signup forms from automated abuse. reCAPTCHA's use of data is covered by the Google Privacy Policy (https://policies.google.com/privacy) and Google Terms of Service (https://policies.google.com/terms) How long it lasts: 6 months

These are set only with your consent, given through our consent banner. If you decline, none of them are set and no analytics are collected about you — everything in the app works exactly the same.

These cookies are set on our own domain, but the analytics data they enable is processed for us by PostHog, our analytics provider, on servers in the European Union.

ph_*_posthog

What it does: Holds a random identifier so we can understand how the app is used — which features people use and where the signup flow loses them

How long it lasts: 1 year

ft_attribution

What it does: Remembers the first marketing campaign that brought this browser to our site (for example, a newsletter or ad link), so we know which channels actually work

How long it lasts: 90 days

lt_attribution

What it does: Remembers the most recent campaign-tagged visit

How long it lasts: 90 days

With your consent, we use PostHog (https://posthog.com) to collect behavioural analytics: pages viewed, features used, and the steps of our signup flow. This may include session replays — reconstructions of how a page was used.

In every replay, all text and all form inputs are masked. We never see what you type: not your name, your email, your trades, or anything else you enter. Replays show us where people get stuck, not what they wrote.

Analytics data is used only to understand and improve the product.

If you arrive via a link carrying campaign tags (utm_* parameters, or the click identifiers Google and Meta append to links from their platforms), we store those tags in the two attribution cookies above so that, if you later sign up, we know which channel introduced you.

This is our own first-party measurement of our own marketing — not advertising, as explained at the top of this page.

The consent banner is the primary control for analytics and attribution cookies. It appears until you make a choice, and both choices are equal — declining is one click, and nothing about the app changes if you do. You can change your decision at any time from your account settings.

Your browser can also block or delete cookies — see your browser's help pages for instructions. Note that blocking the essential cookies above will stop parts of the site working, such as staying signed in.

When you subscribe, checkout happens on Stripe's own site. Any cookies used there are set by Stripe on its own pages and covered by the Stripe Privacy Policy (https://stripe.com/privacy).

Anything unclear, or a cookie you can't account for? Contact us at privacy@trader-biz.app or via our contact page. For how we handle personal data more broadly, see our Privacy Policy.