Private by design.

Tessera is a personal memory journal. It does not collect your data, because there is no "it" to collect. Nothing leaves your device unless you choose to export it or sync it through your own iCloud account.

Last updated: April 2026.

What we collect

Nothing. Tessera has no servers of its own, no analytics SDKs, no crash reporters, no advertising identifiers, no newsletters, and no accounts. We do not see your memories, metadata, search queries, device identifiers, IP address, or usage patterns.

Where your memories live

Memories, eras, tags, and moods are stored locally on your device and — if you are signed in to iCloud and have iCloud Drive enabled for Tessera — mirrored to your private iCloud database. This is the same Apple-run, end-to-end encrypted storage that backs Health, Notes, and Messages in iCloud. Little Lumen Labs has no access to it.

Who can read your data

Only you, on devices signed in to your Apple ID, after passing the lock screen you configure (Face ID, Touch ID, or device passcode). Your writing is never read, indexed, analyzed, or used to train any model.

Biometric authentication

When you enable the lock screen, Tessera asks iOS or macOS to verify your face, fingerprint, or passcode. Biometric data never leaves the Secure Enclave; the app only receives a pass/fail result.

Notifications

If you opt in to gentle reminders to reflect or write, those notifications are scheduled locally on your device using Apple's notification framework. They are not sent through any server.

Export and deletion

You can export every memory to a folder of Markdown files at any time, with no prompts or upsells. Deleting the app removes the local copy; deleting the CloudKit data from Settings → Apple ID → iCloud → Manage Storage → Tessera removes the synced copy permanently.

Third parties

None. Tessera uses only first-party Apple frameworks and Apple's CloudKit for sync. There are no third-party SDKs.

Children

Tessera is a private journaling tool intended for personal use. It does not knowingly collect information from anyone, which includes children under 13.

Changes to this policy

If we ever change how Tessera handles your data, we will update this page and note the change in the app's release notes before the change takes effect.

Contact

Questions or concerns? Write to privacy@littlelumenlabs.com.