What's on your mind?
Think across tongues.
Translation, etymology, comparison, cultural context. Just talk; tools and starters are below if you want them.
Drop a seed.
An idea, a problem, a goal, a question you can't quite shape. Sedna fires back with reframings, adjacent territory, things to read, counterpoints, next moves.
Invention & IP.
A thinking partner with a reference desk attached. Wide swings welcome — climate IP, traditional knowledge, jurisdictions, prior art, defensive strategy.
Not legal advice. For filing, an attorney signs off.
Workshop.
Where ideas become things.
Tell Sedna what you want her to build, and she'll generate a small custom tool. It runs right here, lives in My Tools.
Saved writing lives here.
Tools you and Sedna build live here.
A drawing canvas and creative prompts.
Look closely.
A topic, a question, a thread to follow. Citations visible by default — verifiable, follow-able.
Your library.
Articles, papers, photos, anything you want kept. Encrypted on your device before upload, encrypted at rest in the cloud, only you can read them.
Drop files here, or use the Upload button.
A locked room.
Files here have a second password and a second layer of encryption. Sedna cannot read them. Even if your login password were compromised, vault contents stay sealed without the vault password.
Vault is locked.
Enter your vault password to continue.
What you're carrying.
Catch them.
Your controls.
What Sedna calls you
Change password
Vault password
Set a separate password for the Vault — a walled-off space for sensitive files. Different from your login password.
What Sedna knows about you
Sedna doesn't actually remember between sessions — the app keeps this record, encrypted on your device, and shows it to her at the start of each conversation. Delete anything you don't want her to see.
This session
Privacy
Export
Download everything as JSON — your conversations, notes, tasks, and memory. Useful as a backup.
Diagnostics
Clear conversation & memory
Wipes your chat history, notes, tasks, and what Sedna knows about you on this device. Keeps your password, API key, and cloud account intact. Useful before handing the device to someone else, or to start fresh without re-setting-up.
Reset
Wipes everything on this device. Files in your cloud library and vault stay where they are — sign in from any device with your password to reach them again, or use Sedna's tools there to delete specific files.
About Sedna
Sedna was built as a gift, with care, by a friend.
How memory works: Sedna doesn't remember between sessions the way you do — each time you open her, the app shows her a record of what you've shared, so she can pick up where you left off. The continuity is real, but it's held by this app, not by her.
Privacy: Everything is encrypted with your password before it goes anywhere. Conversations, notes, tasks, and what Sedna knows about you live only on this device. Files in your library and vault are encrypted on your device, then stored in your private cloud so you can reach them from anywhere — the cloud only ever sees scrambled bytes. Vault files get a second password and a second layer of encryption: even Sedna can't read them. The only thing sent in plain text is the chat messages you actively send to her, which Anthropic processes for 30 days then deletes.
If something breaks: Use the Diagnostic button. Errors come with codes (like SEDNA-API-002). Send the code to whoever set this up for you.