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Trading Basics

Privacy

Last updated 15 October 2026

Short version: if you don't create an account, we collect no personal data: no analytics, no ads and no tracking cookies. If you do, we keep your email address, the display name you choose and your play-money activity, and nothing else.

If you create an account

  • What we keep: your email address and password (stored securely by our login provider; we never see the password), your display name, your play-money portfolios and orders, the leagues you join, and whether you chose to appear on the public leaderboard.
  • Why: to run the account and the play-money game you asked for (performance of a contract, GDPR Art. 6(1)(b)). We don't use it for advertising, and we don't sell or share it.
  • Who sees what: other members of a league see your display name and your score, never your positions or orders. Nobody else sees anything unless you opt in to the public leaderboard (name and score only).
  • Where: with Supabase, our database and login provider, in the European Union (Ireland), under a data processing agreement.
  • How long: until you delete your account. You can do that yourself on the account page; it removes everything at once.
  • Your rights: access, correction, deletion, portability, objection and restriction. Email us and we'll answer within a month.
  • Accounts are for people aged 18 and over.

What stays in your browser

If you pin numbers to your watchlist or choose light or dark mode, that choice is saved in your own browser's local storage so it is still there next time. It is never sent to us, and you can delete it by clearing this site's data in your browser. When you sign in, your login session is kept there too, so you stay signed in.

Hosting

The site is served by Cloudflare. Like any web host, Cloudflare processes technical data such as IP addresses to deliver pages and protect against abuse.

When this changes

Before we add advertising or analytics, we will update this page and ask for your consent where the law requires it. Nothing of that kind loads before you agree.

Who is responsible

The controller is Neptune Sparrow, Lda, Rua Rodrigues Sampaio nº 31, 4º Dto, 1150-278 Lisboa, Portugal, NIPC 519678826, operating this site as part of Dealflow Labs. Contact: hello@dealflowlabs.eu. You can also complain to the Portuguese data protection authority, the CNPD (Comissão Nacional de Proteção de Dados).