ES

Privacy policy

Last updated: September 2026 · In accordance with the EU GDPR (2016/679) and Spanish data protection law (LOPDGDD 3/2018)

1. Data controller

Blackwall Capital SL · Tax ID (CIF) B13896592 · CALLE GRAN VIA CARLES III, 98 - P. 10, Barcelona, Spain · hi@qnt42.com

2. What data we process and why

DataPurposeLegal basis
Email and password (stored as a secure hash)Creating and managing your accountPerformance of the contract (art. 6.1.b GDPR)
Subscription and payment data (handled by Stripe; we never store your card)Charging the Pro plan and invoicingPerformance of the contract and legal obligation (invoicing)
Companies, funds and thermometers you follow, history of alerts sent, and the language you use the Service inSending you the alerts you asked for, in your language, and showing your watchlistPerformance of the contract
Telegram chat ID (only if you connect Telegram)Sending you the alerts by direct messagePerformance of the contract, at your request
Saved portfolios: tickers and amounts (only if you press “Save portfolio”)Recalculating their risk analysis when you askPerformance of the contract, at your request
IP addresses and technical access logsSecurity, abuse prevention and troubleshootingLegitimate interest (art. 6.1.f GDPR)
Portfolio League (only if you join): public alias, fictitious portfolios, orders, results, badges and the private leagues you create or joinRunning the competition and showing the rankings, the player profile and the share card (with your alias only, never your email)Performance of the contract, at your request
Portfolio League: email verification, and a hashed fingerprint of your IP address and of a device cookieEnsuring one account per person and preventing cheating in the competitionLegitimate interest (art. 6.1.f GDPR)
Usage statistics: pages visited, the website you came from, device type and actions (playing, signing up, sharing…), linked to an anonymous daily fingerprint computed from your IP and browser, which changes every day and cannot be traced back to your IP (we do not store the IP or use cookies for this). If you have an account, they are also linked to your userKnowing which parts of the Service are used and improving itLegitimate interest (art. 6.1.f GDPR)
Your email when you contact usAnswering your queryLegitimate interest / pre-contractual measures

Portfolios you analyse without pressing “Save portfolio” are not stored. We do not make automated decisions with legal effects on you or build profiles for commercial purposes. We do not process special categories of data. Summaries and analyses are generated on our own servers: we do not send your data to artificial intelligence providers.

3. Recipients

We do not sell or share your data with third parties for commercial purposes. The market data providers we use receive no personal data. Apart from Telegram as described above, there are no international transfers outside the EEA, other than those the providers listed may carry out under standard contractual clauses or other GDPR safeguards.

4. Retention

Account data, your watchlist, alert history and saved portfolios are kept while your account is active or until you delete them. After you close your account, they are blocked for the applicable legal limitation periods. Billing data is kept for the periods required by tax and commercial law. Technical logs are kept for a maximum of 12 months. Usage statistics are deleted after 13 months. In the Portfolio League, the hashed IP and device records are deleted after 90 days; your alias, portfolios and results are kept while your account is active.

5. Your rights

You can exercise your rights of access, rectification, erasure, objection, restriction of processing and portability at any time by writing to hi@qnt42.com from your account's email address. You also have the right to lodge a complaint with the Spanish Data Protection Agency (aepd.es) or with the supervisory authority of your country.

6. Cookies

This site only uses technical cookies: a session cookie, strictly necessary to keep you logged in, and, in the Portfolio League, a device cookie (tsd) used only to prevent multiple accounts in the competition. The language is set by the page address itself, without cookies. The daily games use a technical cookie (ts_jugador) with a random identifier so that only your first game of the day counts. Usage statistics are measured without cookies. We do not use analytics, advertising or third-party cookies, so no consent banner is required. Fonts are loaded from Google Fonts, which involves a technical request to their servers when the page loads.

7. Security

We apply appropriate technical and organisational measures: TLS encryption on all communications, passwords stored with a secure hash, restricted server access and regular backups.

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