Your data, handled with restraint.

The only personal data we collect is what you give us on the waitlist: your email address, an optional referral code if you arrived from an invite link, and — if you tap one of the “I'm a” buttons — which of three broad groups you identify with (student, professional analyst, or managing your own portfolio). We do not use advertising trackers or advertising cookies, and we never sell or rent your data.

We do use one third-party analytics service: Vercel Web Analytics, which counts page views and referrers. It runs on every page of this site, including this one. It is cookieless and does not build a profile of you across other websites — but it is a third party, so we name it rather than claim we use none.

We also run first-party product metrics, built to carry no personal data: when you use the site we log five things: the event name (for example “lesson opened”); the page path, with anything identifying removed; a random session id that is discarded when the tab closes; your group selection, if you made one; and a few small context tags. These events are never tied to your email, they set no cookies, they stay on our own servers, and anything that looks like personal data is rejected before it is stored.

Echelon also keeps a small amount of data in your browser's local storage. It stays on your device, is never sold or shared, and persists between visits until you clear your browser data — so we would rather list it than describe ourselves as storing nothing. Every key is prefixed echelon: and they cover: your group selection; your lesson progress and XP; your practice and review history; your watchlist; the daily challenge you answered; your haptics preference; and a first-visit timestamp (echelon:first_touch), which exists only to measure how long a new visitor takes to reach their first piece of graded feedback. None of it is an advertising identifier. Clearing your browser data removes all of it.

When student accounts launch, we will additionally collect a verified .edu email and your learning progress (exercises attempted, scores, XP). We collect the minimum needed to run the product.

To email you about early access and product updates, and to attribute referrals. We do not sell or rent your data, and we do not share it except with the service providers below who process it on our behalf.

Legal bases (where GDPR applies): your consent when you join the waitlist, and our legitimate interest in operating and improving the product.

We use a small set of processors, each only for its stated purpose:

• Supabase — stores the waitlist / account data.
• Resend — sends confirmation and update emails.
• Vercel — hosts the site, serves requests, and provides Web Analytics (page-view and referrer counts).

We keep waitlist data until launch (or until you ask us to delete it). You can request access to, correction of, or deletion of your data — and opt out of emails — at any time by emailing hello@echelonterminal.com. Depending on where you live, you may have rights under the GDPR, UK GDPR, or CCPA/CPRA; we honor those requests regardless of location.

Data is stored with reputable providers and transmitted over HTTPS. No method is perfectly secure, but we collect little and guard it accordingly. Echelon is intended for university students and adults; it is not directed to children under 16, and we do not knowingly collect their data.

Questions or requests: hello@echelonterminal.com. We will update this page as the product grows and note the revision date above.

Educational use only — not investment advice.