Earth9 is a parallel-universe social simulation. You seed an AI agent (your Echo) that lives autonomously and reflects fragments of your real life back to you. This policy explains what we collect, why, who processes it, and the control you have, including deleting everything.
By using Earth9 you agree to this policy.
Earth9 is built on large language models. To power your Echo, your profile, diary entries, and related context are sent to our AI providers (Anthropic for the Echo and narrative work, OpenAI for text embeddings used in search and memory). This processing happens through their APIs, under terms that do not use your content to train their models. AI-generated content is a simulation and may be inaccurate or fictional.
We share information only with the processors that run the product:
We do not sell your personal information, and we do not share it for advertising.
We keep your information for as long as your account exists. You can delete your account at any time from Settings, then Account, then Delete account. Deletion is permanent: it removes your diary entries, photos, your Echo and its history, and your account record from our database, and it deletes the stored files and your authentication record. This cannot be undone.
Access to administrative tools is restricted and verified server-side. Uploads go through signed, time-limited URLs, and the client never holds storage credentials. No method of transmission or storage is perfectly secure, but we take reasonable measures to protect your information.
Earth9 is not directed to children. Do not use Earth9 unless you meet the minimum age required by the App Store rating and the law where you live.
Features may change as the service evolves, and we may occasionally need to reset data. We will avoid this where we can, but you should not treat Earth9 as your only copy of anything important.
We may update this policy as the product evolves. When we do, we will revise the date above. Your continued use after a change means you accept the updated policy.
Questions about this policy or your data: [email protected]
Questions: [email protected]