Privacy

What we know about you. It is not much.

Draft — takes effect when accounts open. Accurate for the product as it runs today, and the promise is that this page changes BEFORE the practice does, never after.

Today

• This site runs no analytics, no trackers, no third-party scripts, and sets no cookies. What you read here is between you and your browser.
• The chart stores your workspace — tabs, drawings, practice record, lesson progress, measured spreads — in your own browser's local storage. It never leaves your machine.
• Accounts hold exactly two facts: your email and an argon2 hash of your password — never the password itself. They live in one file on our own server, not with a third party.

When subscriptions open

• We will additionally store your plan, and the workspace you choose to sync.
• Payment details go to the payment processor, not to us.
• Starter carries advertising; what it will never carry is your personal data being sold. If an advertising partner requires more than "a person on the Starter plan saw this", we will not use that partner.
• Data is deleted when you delete the account, not archived "for quality purposes".

Always

• We will never ask for broker credentials — the chart reads markets, not your account.
• No dark-pattern consent flows. If a banner ever appears here, declining everything will be one click and the default.