Legal
Privacy policy
Last updated: 30 October 2026
1. Who is responsible
Lukas Schwarzbrand, Mandelstraße 1, 8010 Graz, Austria · team@evolsior.com
2. This website
The pages on evolsior.com are delivered through Cloudflare. To deliver the site securely, Cloudflare processes technical connection data such as your IP address. We do not use advertising or tracking cookies and we do not run analytics. Fonts are loaded from Google Fonts, which means your browser connects to Google servers when you open the page.
3. The Stella app
When you use Stella, we store the following on our server:
- Account: your name, email address, and your password as a one-way hash (never in plain text).
- Your content: entries and reminders, chats and voice messages, notes Stella keeps about you, lists, goals and, if you use the feature, spending (amount, merchant and card name, never card numbers).
- Optional connections: mailboxes, timetable and school books, only if you connect them yourself. Credentials are stored encrypted.
Location is requested only at the moment Stella shows you shops nearby. It is not stored.
Purpose and legal basis: to provide the app you asked for (Art. 6(1)(b) GDPR) and to keep it secure (Art. 6(1)(f)). Optional connections and location rely on your consent (Art. 6(1)(a)), which you can withdraw at any time.
4. Artificial intelligence
To understand messages, mail and speech, the content needed for each request is sent to AI providers, currently Groq and OpenRouter (and the models offered there). Voice messages are sent to Groq for transcription. These providers may process data outside the EU/EEA; where they do, this happens under the safeguards required by the GDPR, such as standard contractual clauses.
5. Email delivery
Verification codes are sent from noreply@evolsior.com through the email delivery service Resend.
Writing to Stella by email. You can email stella@evolsior.com from addresses you have linked to your account. Mail to this address is received through Cloudflare Email Routing and handled like a chat message: we read the text (not attachments), pass it to our AI providers as described above, and Stella replies by email through Resend. Messages from addresses that are not linked to an account are not processed; the sender receives a short notice (at most once per day) and the message is discarded. We keep only counts of sent and received messages and the recipient's domain for operation and fault-finding, not the contents.
6. Hosting
The app runs on a server operated by Contabo GmbH (Germany), within the EU.
7. How long we keep data
We keep your data until you delete it or your account. You can delete your account and all its data yourself in the app under Settings → Delete account.
8. Your rights
You have the right to access, rectification, erasure, restriction, data portability and objection. Write to team@evolsior.com. You can also lodge a complaint with a supervisory authority; in Austria this is the Data Protection Authority (dsb.gv.at).
9. No automated decisions
Stella proposes and carries out actions you allow. She makes no decisions that have legal effect on you.