Legal document

Last updated
4 September 2026

Privacy Policy

Who we are and the scope of this policy

QuantTrading.io is an interview preparation platform for quantitative trading roles, operated by QuantTrading.io ("we", "us", "our"). This policy applies to people who use our website, account features, subscriptions, question bank, guides, drills, games, and readiness features, wherever they are located.

If you have questions about this policy or how we handle personal information, contact us at hello@quanttrading.io.

Information we collect

Depending on how you use QuantTrading.io, we may collect:

  • Account information: Your email address, authentication identifiers, account creation date, preferences, and marketing choice. Our sign-in provider manages your credentials; we do not receive your password in plain text.
  • Subscription information: Your plan, subscription status, invoices, and billing identifiers. Stripe processes payment card details; we do not store full card details on our servers.
  • Learning and game performance: Questions attempted, completed game sessions, game configuration and difficulty, scores, accuracy, timing, other summary metrics, personal bests, and progress history associated with your account.
  • Readiness insights: Readiness scores, confidence and consistency indicators, trends, skill-area coverage, and recommendations derived from your completed game sessions.
  • Communications: Messages, support requests, feedback, and other information you send us.
  • Technical and security data: IP address, browser and device information, approximate location derived from network information, request records, and security events generated when you use the platform.

Game performance and readiness information is personal information while it is linked to your account. We may also create aggregated or de-identified statistics that do not reasonably identify an individual.

We do not ask you to provide sensitive or special-category information, and the readiness model is not designed to use information such as health, ethnicity, religion, political opinions, or biometric data.

How we collect and use information

We collect information directly from you, automatically through your use of the platform, and from service providers involved in authentication, payments, email, hosting, and security. We use it to:

  • Create, authenticate, secure, and manage your account
  • Provide subscriptions, process payments, and send service communications
  • Save your progress, completed-session history, and personal bests
  • Calculate readiness, consistency, trends, skill coverage, and recommendations
  • Provide support, investigate faults, and respond to feedback
  • Protect accounts and the platform from fraud, abuse, and security incidents
  • Improve the platform using usage patterns and aggregated or de-identified data
  • Send product news or study material when you have chosen to receive it
  • Comply with legal, accounting, and regulatory obligations

Where applicable law requires a legal basis, we process information as necessary to provide the service you request or perform our contract with you; for our legitimate interests in operating, securing, supporting, and improving the platform; with your consent, such as for optional marketing; or to comply with legal obligations. You may withdraw consent at any time, without affecting processing that occurred before withdrawal.

How readiness works

Readiness is automated educational feedback based on eligible completed game sessions. The model gives more weight to recent performance and considers factors such as game difficulty and consistency. Some completed configurations may remain in your history as practice without affecting your readiness score.

Readiness is intended only to help you direct your interview preparation. It is not an employment assessment, does not guarantee interview or job performance, and is not used by us to make decisions that produce legal or similarly significant effects. We do not provide account-linked readiness results to employers or recruiters unless you ask us to do so.

When we disclose information

We disclose only the information reasonably necessary to providers that help us operate QuantTrading.io, including:

  • Amazon Web Services: Website and API hosting, account authentication, email delivery, security, and application data storage.
  • Stripe: Subscription and payment processing. See Stripe's Privacy Policy.
  • Google: Authentication information if you choose Google sign-in. See Google's Privacy Policy.

We may also disclose information to professional advisers, courts, regulators, law enforcement, or another party where required by law, necessary to protect rights and security, or connected with a corporate transaction.

We do not sell personal information. We do not share personal information for cross-context behavioural advertising or use it to serve targeted advertising.

Data location, security, and international users

Our application data, including account-linked game history and readiness data, is hosted in Sydney, Australia. If you use QuantTrading.io from another country, your information is transferred to and processed in Australia.

Providers such as Stripe or Google may separately process information in the countries where they operate, as described in their privacy policies. Where applicable, we take reasonable steps to protect information transferred across borders and to use providers that maintain appropriate safeguards.

We use safeguards including encrypted connections, encrypted storage, access controls, logging, and service monitoring. No system can be guaranteed completely secure, but we work to prevent unauthorised access, alteration, loss, or misuse.

Data retention

We retain account-linked completed game sessions and performance summaries while your account is active so that we can provide longitudinal history, personal bests, and readiness features. Readiness may focus on recent eligible sessions even though your completed-session history is retained.

If you ask us to delete your account, we will delete or de-identify associated personal information within 30 days, except where retention is reasonably necessary for security, fraud prevention, accounting, tax, regulatory, or other legal requirements. Aggregated or de-identified information that no longer reasonably identifies you may be retained for longer.

Some operational records, such as account access, service usage, email delivery, and support history, are generally kept for up to 400 days to help us maintain security and provide support. Financial records may be kept for up to 7 years where required for accounting, tax, or other legal obligations.

Your privacy rights

Privacy rights vary by location. Subject to applicable law, you may have the right to:

  • Access or obtain a copy of personal information we hold about you
  • Correct inaccurate or incomplete information
  • Delete personal information or your account
  • Receive certain information in a portable format
  • Restrict or object to certain processing
  • Withdraw consent and unsubscribe from marketing
  • Complain to the privacy or data-protection authority where you live

Residents of certain United States jurisdictions may also have rights to know the categories, sources, purposes, and recipients of personal information; to opt out of its sale, sharing, or use for targeted advertising; and to receive non-discriminatory service when exercising privacy rights. We do not sell or use personal information for those advertising purposes.

To make a request, email hello@quanttrading.io. We may need to verify your identity before acting on a request. We will respond within the period required by the law that applies to you.

Australian privacy law and complaints

We are based in Australia and are committed to handling personal information in accordance with applicable Australian privacy law, including the Australian Privacy Principles where they apply. Please contact us first if you have a privacy concern so we can investigate it.

If you are not satisfied with our response, you may contact the privacy or data-protection authority in your jurisdiction. In Australia, this is the Office of the Australian Information Commissioner.

Cookies and browser storage

We use essential cookies or browser storage for sign-in, security, preferences, and core platform functionality. We do not use tracking or advertising cookies. Disabling essential storage may prevent account features from working correctly.

Changes to this policy

We may update this policy as our services or legal obligations change. We will update the date at the top of this page and, where required, provide additional notice of material changes.