Privacy Policy — Mirastra

Last updated: 11 November 2026

This policy explains what the Mirastra website, mirastra.astrallabs.eu, collects, why, and who else sees it.

Who is responsible

The data controller is the business named at the bottom of this page. For any privacy question, write to [email protected].

The free calculator

To draw your chart, the birth date, the time (or that it is unknown), the place and the sex you enter are sent to our server, the chart is calculated and sent back in the page. On the calculator, your birth details are used only to draw the chart and are not stored: not on our server, not in logs, and not by anyone else. The page loads nothing from other websites.

Cookies and statistics

This site sets no cookies and has no third-party analytics or advertising. Cloudflare, which delivers the site, may set a technical cookie needed to protect it from attacks and bots. Stripe's payment page uses its own cookies under Stripe's terms.

We count visits anonymously on our own server: steps such as opening the calculator, building a chart, pressing a buy button and paying, broken down by product, language version and document. Birth details and email addresses are never part of these counts, and nothing is stored on your device for them. To count a person once a day rather than at every page, our server combines the IP address and browser type with a random key that changes every day and exists only in its memory; the result stays in memory until the day ends, and only totals per day are stored.

Buying a document

Payment. You pay on Stripe's payment page. The purchase is sold through Link, a Stripe service, which acts as the merchant of record: it takes the payment, charges any taxes and issues the receipt. Stripe receives your payment details, email address and country as a separate controller, under its own privacy policy. We never see your card number. From Stripe we receive your email address, the amount, Stripe's session and payment identifiers and whether the payment was refunded.

Purchase journal. For each purchase we keep a record in our purchase journal: the product and document, the language version of the site, your email address, Stripe's session and payment identifiers, the status of the purchase, any refund, and what writing the document cost us. The journal does not contain birth details.

Writing the document. Your birth details — and, for a document about a couple, those of the other person — are used to calculate the chart and write the document. While it is being written, they are kept on our server temporarily; afterwards, only inside the written document.

Mirastra documents are written on our own server. It sends the calculated chart (the positions of the planets in the signs and houses, the Ascendant and the Midheaven, the house cusps and the aspects, from which the date and time of birth, and roughly where on Earth it was, can be worked out) to Google's Gemini model and receives the text back. For a synastry, it sends both charts in this form, the aspects between them and the houses of each chart that the other person's planets fall in. For a Year Forecast, it also sends where the slow planets are in each month of that year and the days they meet the points of your chart; for a Solar Return, the chart of the moment the Sun comes back to its place in your chart, cast for your place of birth, in the same form. Gemini does not receive your email address, your name, the sex you chose or the name of your place of birth, nor the sex or the place of birth of the other person. Apart from your document on our server, no copy of the text is kept.

Audio episode. Where the document page offers an audio episode, our server sends only the text of your document to Google's Gemini models, which write a conversation of two hosts strictly from it and voice it. The audio file is stored on our server next to the document and is marked inside as created by AI.

Your document. The text of the document, its language and its secret link are stored on our server, so that you can open it again. Anyone who has the link can open the document, so keep it private.

Email. Brevo sends you one email with the link and the document as a PDF. Brevo processes your email address and the message and keeps delivery logs.

Please enter someone else's birth details only if they have agreed to it.

Support

When you write to [email protected], Porkbun, our domain's email forwarding provider, forwards the message to our mailbox. We use your address and message only to answer you and to deal with your request.

Technical data

Cloudflare sits in front of our server: it delivers the site, protects it from attacks and passes every request through, including what you enter in forms. Our server is hosted by OVH in a data centre in Warsaw. It keeps a technical log of requests — IP address, time, the address requested and browser type — for 14 days, for security. The contents of forms are not logged.

Who receives your data

• OVH — hosts our server in Warsaw.
• Cloudflare — domain name service, delivery of the site and protection from attacks.
• Stripe (Link) — payment, taxes and receipts, as a separate controller of payment data.
• Brevo — sends the email with your document.
• Google (Gemini) — the AI model that writes the text from the chart and, for the audio episode, the conversation about the document and its voices.
• Porkbun — forwards email sent to our support address.
• Our accountant and public authorities, as far as the law requires.

Under their terms for API customers, the AI providers do not use what we send them to train their models; they may keep it for a limited time to detect abuse. We do not sell your data and do not share it with anyone beyond those listed above.

Transfers outside the EEA

Cloudflare, Google and Stripe may process data outside the European Economic Area, including in the United States. Such transfers rely on the European Commission's adequacy decision (the EU-U.S. Data Privacy Framework) where the provider is certified under it, or on the standard contractual clauses approved by the Commission. You can ask us for a copy of these safeguards.

Legal basis and retention

• Writing and delivering a document you bought — performance of the contract (Art. 6(1)(b) GDPR). The document is kept until you ask us to delete it.
• Purchase journal — keeping tax and accounting records (Art. 6(1)(c) GDPR) and handling claims. It is kept for 5 years from the end of the year of the purchase, or longer while a claim may still be made. If you ask us to delete your data, your email address is removed from it and the rest stays without any link to you.
• Technical log — security of the site, our legitimate interest (Art. 6(1)(f) GDPR); 14 days.
• Anonymous statistics — knowing which parts of the site are used, our legitimate interest (Art. 6(1)(f) GDPR); they identify no one.
• Support messages — answering you and defending claims, our legitimate interest (Art. 6(1)(f) GDPR); until the matter is closed, then while a claim may still be made.

Deleting your document and email

To delete your document and email, write to [email protected] from the address you used for the purchase, or include the link to the document. We delete the document and its audio episode from our server, remove your email address from the purchase journal, and confirm by email when it is done. Stripe and Brevo keep their own records of the payment and the email under their own policies.

Your rights

You have the right to access your data, to have it corrected or erased, to restrict its processing, to receive a copy of it, and to object to processing based on our legitimate interest. Write to [email protected]. You also have the right to complain to the Polish data protection authority, the President of the Personal Data Protection Office (UODO), ul. Stawki 2, 00-193 Warszawa.

Documents are written automatically, but they have no legal or similarly significant effect on you.

Children

Mirastra is not intended for children under 16, and we do not knowingly collect their data. If you believe a child has bought a document, write to us and we will delete it.

Changes

If this policy changes, the date at the top changes with it. The rules of the service are in the terms of use, refunds are described in the refund policy.

Contact

Aliaksandr Ramaniuk, sole proprietorship registered in Poland
Marsz. Józefa Piłsudskiego 74/320, 50-020 Wrocław, Poland
NIP 8943218739, REGON 526266038
Phone +48 790 281 740
[email protected]