Cryptologist

Privacy

We collect as little as we can. No advertising trackers, no selling of data.

Without an account

  • Your practice wallets, drawings, favourites, alerts and settings stay in your browser (local storage). We never see them.
  • To choose which partner offers may be shown, your country is worked out from your IP address by country.is or from your time zone. The IP address isn’t stored.
  • When you follow a partner link we record the link, page, coin, country and an anonymous identifier that changes daily (a one-way hash).

With an account

  • Email, username and a hashed password (never the password itself), your league portfolios, sign-up and last-visit dates.
  • Your practice wallets (spot and futures) are saved to your account so they follow you from one device to another, and are deleted with it.
  • A strictly necessary session cookie keeps you signed in. It isn’t used for tracking, so no consent banner is needed.
  • If you join the Pro waitlist: your email, your country and the date, only to tell you when Pro launches.
  • If you subscribe to the Sunday brief (with or without an account): your email, language, country, where you subscribed and the dates you subscribed and confirmed, only to send the newsletter, on the basis of your consent. Every email has a one-click unsubscribe link; we never sell or share the list.
  • If you use the agents' chat: how many messages your account sent each day (kept three months, to apply the daily limit). Not the messages themselves: the conversation stays in your browser. To be answered, each question and the conversation so far are sent to the model you pick — run by Groq or Cerebras (open-source models) or Anthropic (Claude) — whose API terms say they use them to answer, not to train their models. Don't put personal details in the chat.

Audience measurement

To see what works, we count visits, a few key actions (finishing a lesson or a replay, placing a first practice order) and how fast pages load, as daily totals. This uses no cookie and stores nothing in your browser, and your IP address is not stored: it is mixed with your browser’s name and the date into a one-way code that changes every day, only so that you aren’t counted twice, and that code is deleted after 48 hours. The totals are kept for 25 months. If your browser sends Do Not Track or Global Privacy Control, nothing is counted.

Third parties

Live prices stream directly from Binance, OKX, Bitget and Kraken to your browser, so those services see your IP address, as with any website. Coin details may be loaded from CoinGecko or CoinPaprika, and the optional TradingView chart from TradingView. Market data on the screener and memecoin pages comes from CoinMarketCap, DexScreener, GeckoTerminal and PumpPortal; coin logos load from CoinMarketCap. There are no ad networks: a partner card only loads the partner’s logo image. Pro passes are paid on Revolut’s payment page: Revolut processes the payment and we only keep the order (pass, amount, country, date) — never card details. Hosting: Hostinger (EU).

Your rights

Under the GDPR you can access, correct or delete your data and object to its use. Use the contact on the legal notice page. You can also complain to your data protection authority (CNIL in France).

Account data is kept while your account exists; click records for 24 months at most.