Draft notice — pending legal review. Confirm the wording and the contact address before treating this as final.
Privacy Notice
Hyperjournal is a read-only journal for your own Hyperliquid perpetuals trading. This notice explains what it holds, why, and where it lives. It is written to be accurate to how the app actually works, not to a template.
What we collect
- Your wallet address. You sign in by proving control of an Ethereum address (Sign-In with Ethereum). We store that address; it is your identity in the app.
- Your public on-chain trading data. We read your fills, funding and positions from Hyperliquid's public API for the wallet(s) you sign in with, and reconstruct them into trades. This data is already public on Hyperliquid.
- What you write. The notes, theses, tags and ratings you enter. These are private to your account.
- One session cookie. A single signed cookie keeps you logged in. There are no third-party cookies, no advertising, and no analytics or tracking.
What we never do
- We never place trades, move funds, or ask for a private key or seed phrase. Signing in is a signature, not a transaction.
- We do not sell or share your data, and there are no third-party trackers or ad networks.
Where your data lives
Everything is stored in a single database on one private server (a VPS in Singapore). Your journal entries exist only there. Access is over HTTPS.
Isolation between accounts
Every account only ever sees its own wallets, trades and notes. Requests for another account's data are refused.
Retention and your choices
Your journal content is kept until you ask for it to be removed. To request deletion of your account and notes, contact the address below. Your on-chain trades remain public on Hyperliquid regardless — we only control the copy in this journal and the notes you wrote here.
Contact
Questions or deletion requests: support@hyperjournal.io. Feedback and product ideas: feedback@hyperjournal.io.