Privacy Policy

Effective date: August 23, 2026 · Written to be read, not skimmed.

The short version — and every word of it is binding on us

  • No human at Persephone reads your entries. Not support, not engineers, not the founder. Ever.
  • Your entries are encrypted in transit and at rest.
  • Sponsors see nothing. If an organization paid for your seat, they receive anonymized, aggregate usage counts only — never your content, never your identity.
  • Every disclosure is your decision. Your file leaves Persephone only when you export or share it.
  • We do not sell your data. We do not show ads. We never will.
  • AI features are off until you say yes — and they serve only you.

1. Who we are

Persephone.ai (Persephone.ai Incorporated, a Delaware corporation) operates an encrypted documentation platform available on iOS, Android, and the web. Questions about this policy: info@persephone.ai.

2. What we collect, and why

3. What we never do

4. AI, by your consent only

The app asks whether you authorize AI to be aware of your entries. If you decline, it isn't. If you consent, AI analysis exists to serve you alone — insight, patterns, and guidance delivered privately inside the platform — and your consent is revocable at any time in settings. AI outputs about your file are never shared with sponsors, partners, or any third party, and are never inputs to any commercial or aggregate analysis.

5. Sponsored seats and organizations

When an organization sponsors seats, it receives one thing: anonymized, aggregate utilization counts (for example, how many of its seats are active). It cannot see who holds a seat, what anyone wrote, or whether any specific person uses the platform. This is a contractual commitment in every sponsor agreement and an architectural property of the platform. If your seat was gifted by an individual sponsor, they receive nothing at all — they will never know who used their gift.

6. When your data leaves Persephone

7. Retention and deletion

Your file exists for as long as you want it to — that is the product. By design, individual entries cannot be silently edited or erased inside the app: your record is tamper-evident, and corrections are added as new, linked entries so the original trail stays intact. That protection exists for you, not against you — you can delete your entire account and everything in it at any time, and when you do, your data is removed from our production systems and purged from backups within 30 days. Website form submissions are retained for 12 months and then deleted. You can request account deletion at any time via info@persephone.ai.

8. Security

Entries and attachments are encrypted in transit and at rest. Access to production systems is restricted, logged, and never includes the ability for staff to browse user content. The app can live on your device under a discreet icon and behind a PIN only you know.

9. Your rights

Wherever you are, you can access, export, correct, or delete your data. If you are in the United Kingdom, Ireland, or another jurisdiction with statutory privacy rights (such as GDPR or UK GDPR), you additionally have rights to portability, restriction, objection, and complaint to your supervisory authority. To exercise any right: info@persephone.ai.

10. Age

Persephone is intended for users 18 and older. We do not knowingly collect personal information from children under 13. If you believe a child has provided us information, contact us and we will delete it.

11. Changes

If this policy changes, we will post the new version here with a new effective date and, for material changes, notify you in the app. We will never change the commitments in the box at the top of this page in a way that weakens them.