Privacy Policy

Effective October 29, 2026 · TradeMath is a trade name of Nitrode Corporation

This is what TradeMath collects, why, and what you can do about it. Short version: an email address to sign you in, what you choose to track, and enough logs to keep the site safe. No advertising, no selling of data.

1. What we collect

• Account. Your email address, and a name if you give one. Sign-in is by one-time link, so there is no password to store.
• What you do on your page. Trackings, notes, watch list, sizing (account size and per-position percentage), notification preferences, and the badges and history your page derives from them. If you turn on auto-track, the desk's posted lines are added to your tracker.
• Billing. If you subscribe, Stripe handles checkout and your card. We store your Stripe customer and subscription identifiers and the subscription's status and renewal date. We never see or store card numbers.
• Email preferences. Which notifications you have on or off, and unsubscribes, so we stop sending when you ask.
• Technical logs. IP address, browser type, requested pages and timestamps, kept for security, rate limiting and debugging. Administrative actions on accounts are logged.
• Abuse prevention. To enforce one account per person we may compare accounts by email, by the payment-method identifier Stripe gives us (never the card number), and by device, network and other technical identifiers; we do not publish the full list, because it exists to catch people working around the rule.
• How the desk is used. For a signed-in account we count which parts of the Service it uses (the desk, a stock page, a pair page, a lesson, the manual) and which names and pairs it looks at, as counts, to see what is worth improving. If you arrived from a link with campaign tags or from another site, we keep that source with your account. These counts are seen only by us and are never published or sold.
• Devices. To keep an account to its owner we keep a list of the devices it is signed in on: for each, the browser and system it reports, the country the connection came from, and when it signed in and was last used. We do not keep the IP address in that list. You can see the list, sign a device out, or sign out everywhere, in Account. When a browser your account has not used before signs in, we email you.
• Browser storage. A session cookie keeps you signed in, and a second cookie lets us recognise this browser the next time it signs in to your account (it carries no access of its own). Local storage on your device holds the tracker, preferences and view state so the desk loads instantly; it is yours and stays on your device unless you sign in, when trackings sync to your account.

2. Why we use it

• To run the Service: sign you in, keep your page, settle your trackings, send the alerts and digests you asked for.
• To bill Pro subscriptions and keep the records the law requires.
• To keep the Service safe: rate limits, abuse detection, incident investigation.
• To improve the Service, using aggregate, non-identifying measures.

We do not sell personal information, and we do not use it for advertising.

3. Email

We send sign-in links, a welcome note, and whatever you turn on in Notifications: exit alerts, the evening digest, close-to-an-exit notes, tape changes, pair alerts, and product news when a release ships (on to start, off in Account). Every email has an unsubscribe link; account and billing emails (sign-in links, receipts, important notices) are sent regardless, because the account cannot work without them.

4. Who else sees it

• Service providers that process data on our behalf and under contract: payment processing (Stripe), email delivery, hosting, network security and backups. They may only use the data to provide their service to us.
• Legal. We disclose information when the law requires it or to protect the Service, our users or the public.
• Business transfer. If Nitrode Corporation or TradeMath is sold or merged, your data goes with it under this policy.

We do not share your data with anyone else. Nothing about your trackings or settings is visible to other users.

5. Where it lives and how long

• Data is stored and processed on servers in Canada and the United States. By using the Service you consent to that.
• Account data is kept while your account exists. Delete the account from your page and the account, trackings, notes and settings are removed at once; encrypted backups age out within 14 days.
• Billing records are kept as long as tax and accounting law requires.
• Technical logs are kept for a limited period and then discarded.

6. Your choices and rights

• See and export. Your page has download my data: everything we hold about you, in one file.
• Correct. Change your name or email address on your page (an email change is confirmed by a link to the new address).
• Delete. Delete my account on your page, or email us. Deletion cancels any subscription.
• Email. Turn each kind of notification off in Notifications, or use the link in any email.
• Ask. Questions, access requests or complaints: [email protected]. We answer within 30 days. If you are in Canada you may also contact the Office of the Privacy Commissioner of Canada; residents of other jurisdictions may have rights under their local law, which we honour on request.

7. Security

Connections are encrypted in transit. Sign-in links expire and work once. Backups are encrypted. Access to production data is limited to the people who run the Service. No system is perfectly secure; if we learn of a breach affecting your data we will tell you as the law requires.

8. Children

The Service is for adults. We do not knowingly collect data from anyone under 18; if we learn we have, we delete it.

9. Changes

We may update this policy. The effective date changes when we do, and material changes are noted in the changelog or by email.

10. Contact

Nitrode Corporation, operating as TradeMath · 120 Adelaide St W, Unit 2500, Toronto, ON M5H 1T1, Canada · [email protected] · nitrode.io