ASTRARIUM — PRIVACY

Last updated 17 October 2026

Astrarium is made by Suncost LLC (“we”). This page covers the Astrarium app on Mac, Windows, iPhone, iPad and Android, and this website. In short: the app has no accounts, no analytics, no advertising and no tracking. We never sell your information, and share it only with the services named here, to do what is described.

In the app

Your place. Astrarium plays the sky above a place you choose. You can type a place name (it is looked up in an atlas built into the app, on your device), click the map, or, if you allow it, let your device find where you are. Location is read once when you ask, never in the background. The place you choose is stored only on your device.

What leaves your device. To hear the live sky, the app reads a short list of public data services, shown in full in the app’s NET panel, each with an off switch:

• Weather, from the Norwegian Meteorological Institute (api.met.no). This request includes your chosen place, rounded to about 1 km. It is the only request that says anything about where you are.
• Space weather (NOAA), earthquakes (USGS), the sun photo and world rain (NASA). These are the same files for everyone and carry nothing about you.
• Updates: in copies downloaded from this website, once a day the app reads a small file here giving the latest version number.

As with any internet request, each service sees your IP address and the app’s name and version, and may keep them in its server logs under its own policies. We receive none of this except the update check, which our host Cloudflare logs as described below. Switching a feed off stops its requests completely; the app then models that part of the sky offline.

Your music. Presets, loops, recordings and settings are saved on your device. They leave it only when you export or share them yourself.

Your license. On Mac and Windows a license is a small file containing the email address you bought with. The app checks it on your device and never sends it anywhere. On iPhone, iPad and Android, purchases are made through Apple or Google, who handle payment under their own privacy policies; the app learns only that the purchase exists, and we receive no payment details.

The app contains no telemetry, crash reporting, advertising or tracking code, and makes no requests other than those listed above.

On this website

Hosting. This site is served by Cloudflare, which processes IP addresses and request details to deliver and protect it. We use no cookies and no analytics.

The beta list. If you join the mobile beta, we store your email address and the platforms you chose, and send ourselves a notification through our email provider, Resend. We use it only to invite you to the beta and contact you about access, and delete it when you ask, or when the beta ends.

Buying. When you buy on this site, payment is handled by Stripe; card details never reach us. Stripe sends us your email address, which we use to email you your license (through Resend) and keep so we can send it again if you lose it. We keep purchase records for as long as tax and accounting law require.

Your choices and rights

You can ask us what we hold about you, to correct it, or to delete it, by emailing [email protected]. We will answer within 30 days. Depending on where you live (for example the EU, the UK or California) you have these rights by law, and you may also complain to your data protection authority. We process beta details with your consent, and purchase details to fulfil your order and meet legal obligations.

Astrarium is not directed at children under 13, and we do not knowingly collect information from them.

The services named here are based in the United States and Norway, so your information may be processed outside your country.

Changes

If this policy changes, we will update this page and its date. If a change affects what the app sends, the app’s NET panel will show it too.

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