Nightbook

Privacy Policy

Last updated: 18 August 2026

Nightbook is a mobile dream journal. Dream content is deeply personal and sensitive data, and this policy was written with that in mind.

Where your data lives

The dreams you write, along with tags, moods, symbols and app settings, are stored on your device, in the app's local database. We do not copy all of that to our servers.

If your device's own backup service (iCloud, Google) includes app data, that backup is governed by that service's terms. This is outside our control.

What happens when you ask for an AI interpretation

AI interpretations, monthly reports and dream-map readings are produced through our server. When you tap "Get AI interpretation":

  1. That dream's text (title, content, tags, mood) is sent to our server.
  2. Our server forwards it to Google's Gemini API to be interpreted.
  3. The interpretation and the symbols found in the dream come back to you.

For premium users, the past counts and accompanying emotions of the symbols in that dream are also added as context, to personalise the reading.

What stays on our server? The raw dream text is not stored. Only the following is kept:

  • an irreversible digest of the text (SHA-256), so that asking about the same dream twice does not run the model again,
  • the produced interpretation and symbols (a cache),
  • your monthly free AI allowance counter and language preference.

These records are tied to an anonymous identifier the app creates for you automatically (see below).

Google's handling of this data is governed by their terms: https://ai.google.dev/gemini-api/terms

When the AI service cannot be reached (no network, service down) the app produces a draft on your device, no data leaves the device, and the text is clearly labelled "generated on your device".

Anonymous identifier

To authorise AI requests and count the monthly free allowance, the app opens an anonymous session in the background on first use. That session is nothing but a random identifier: it contains no email address, phone number, name or device identifier, and you are never asked for any information. There is no sign-up or sign-in screen.

What we do not collect

  • No account is required; we collect no email address, phone number or name.
  • No analytics, advertising or tracking SDKs.
  • No access to location, contacts, photos or health data.
  • We never share dream content with any third party other than to produce the AI interpretation, and we never sell it.

Notifications

If you enable the morning reminder, a local notification is scheduled on your device. It never leaves the device and is not sent from a server.

Your rights over your data

  • Export: Profile → Data lets you export every dream, symbol and setting as a single JSON file.
  • Deletion: Profile → Data → "Delete all my data" permanently erases everything on the device and clears the interpretation cache on our server. This cannot be undone.
  • Uninstalling the app removes the local database.

Children

The app is not directed at users under 13.

Changes

If this policy changes, we publish the current text in the app and update the date above.

Contact

melberlabs@gmail.com

Melber Labs
Fındıklı Mah., İpek Sok., Meriçlife Sitesi 25-45C, Floor 2 Apt. 21
Maltepe / İstanbul, Türkiye