Privacy policy

Liminal Brain Lab for Apple Vision Pro. In force from 7 November 2026.

The short version

Almost everything stays on your headset. The one thing that leaves it is a crash report, tied to no one, so that crashes can be fixed. There are no accounts, no advertising and no tracking.

What stays on the device

Your consent record, saved cards, labs and programmes, imported passages and music, the dials of every session, and anything a lab records are stored on your headset only. Head and hand tracking are read by the device to place the field and follow your hands, and are never stored or sent. Apple Music playlists, if you allow access, are listed on the device and nothing about your library leaves it.

What is sent, and to whom

When the app crashes, a report is sent to Google's Firebase Crashlytics service on the next launch. It holds the crash's stack, the app version, the device model and system version, and a random installation identifier that is not linked to you. It is used only to find and fix the fault. Performance data about launches may travel the same way. Apart from internet addresses, described below, nothing else is collected, and no analytics product is included.

Internet addresses

Like most websites and apps, our servers may record the internet (IP) address a request comes from, to keep Liminal secure and stop abuse. We keep these records for no more than 30 days, then delete them. We never use them for advertising or to build a profile of you, and we never record the address a Contact report is sent from. You can keep your address out of these records: in the Liminal Journeys iPhone app, turn on Keep my internet address out of logs (person button, then Your classes and data); on our website, your browser's Global Privacy Control setting does the same. Requests our servers refuse, such as one over our limits, are recorded either way.

Purchases

The Brain Lab subscription is sold and managed by Apple through the App Store. Apple handles payment, renewal and cancellation, and shares no payment details with the app. The app only learns whether a subscription is active.

Sharing programmes

A programme you share as a file or a link is sent by you, through whatever channel you choose, and contains only the programme's words and settings. The app publishes nothing on your behalf.

Children

The app is rated for ages 13 and up and is not directed at children.

Changes

If this policy changes, the date at the top changes with it, and a material change is announced in the app.

Contact

Questions go to support@liminalbrainlab.com.