BLACK SIGNAL

Privacy policy

Effective November 9, 2026

The app

Black Signal does not collect personal data. The app has no account, ads, analytics, tracking, or crash reporting.

Your journal

Readings, journal entries, breathing records, story progress, and preferences stay on your device. You can export a copy of your journal and delete entries in the app. Deleting the app on iPhone or iPad removes its local journal. On Mac, you can clear the journal by deleting its entries in the app.

Location

Location access is optional. Black Signal uses your coordinates on the device to calculate local sky events. It can save the coordinates as your selected site and does not send them anywhere. You can choose a city or enter coordinates instead. Manage location permission in your device settings.

Optional personalization

On first launch, Black Signal optionally asks for a name and birth details. You can skip setup or save any details you choose. They stay on your device in a separate local store and never influence a draw. The app uses your name in the story and uses birth details to calculate your birth sky and transits. Birthplace search uses a bundled city list. To delete your saved name and birth details, open Journal actions → Personalize → Delete personal details. Journal exports omit the profile unless you turn on Include personal details (name and birth details). Transit lines already saved in the journal remain with their entries.

Motion

If Shake to shuffle is on, Black Signal reads device acceleration on iPhone or iPad only while a shuffle control is visible and the app is active. It mixes the samples with system randomness and discards them after the shuffle. The journal can record the method and sample count.

Purchases

Apple handles purchases and restores through the App Store. The developer does not receive your personal or payment information from Apple for these purchases.

This website and support email

This website is static. The pages set no cookies and run no analytics. Cloudflare may process standard request data such as your IP address to deliver and protect the website.

If you email support, the developer receives your email address and what you choose to send so they can respond.

City data

City data © GeoNames (geonames.org), CC BY 4.0.

Changes and contact

If this policy changes, the revised policy and its effective date will appear here.

For privacy questions, email [email protected].