Where your data lives and what leaves our servers
Nexxus products answer personal questions about money, nutrition and habits. Anyone asking them should know where the answers are kept. This page says so line by line: which data lives where, what leaves our servers and what rights you have.
What lives where
For every product, this table says where its data is stored and where the computing happens.
| What | Where |
|---|---|
| This website, Nexxus ID | Our own server at Hetzner in Nuremberg, home to the account, the sign-in and this site itself. The site loads nothing from other servers: no analytics scripts, no third-party fonts. |
| Pilot, Nutria, Butler | Data and computing on our own server at Hetzner in Falkenstein. Pilot has been there since 21 August 2026. Before that it was with a provider in Frankfurt. |
| Karat | Needs no account. Holdings, unit and display settings always stay on your device. Only if you turn on notifications does our server in Germany store per device the country, currency, language, time zone and your alerts. |
| Language model | Two rented models. Since 6 October 2026 Butler uses Mistral at Scaleway in Paris for advice in the shop, text suggestions and image descriptions; processing takes place in France. Requests are not retained after the answer. Nutria uses Anthropic for recipe suggestions; the contracting party is Anthropic Ireland. Processing also takes place outside the EU, for example in the USA. In Pilot, the AI has been idle since 27 August 2026. |
| Payments, market data | Karat is paid for through the App Store. We do not see the payment details. Market data for Pilot comes in from a data provider. No user data goes out to it. |
| As of October 2026. If a location changes, we update this table. | |
What leaves our servers
Account and storage stay in Germany. Six connections lead outside. For each one, this is what goes through.
- Language model: when you ask Nutria for a recipe, your pantry list goes to Anthropic, nothing else. It is also processed outside the EU, for example in the USA.
- Food scan: Nutria looks up barcodes with Open Food Facts, a non-profit in France, straight from your device.
- Email: Nexxus ID sign-in emails and Pilot's emails are sent by Scaleway in France.
- Push notifications: Pilot and Nutria send them through Expo's push service in the USA, Karat through Apple and Google.
- Payment: Karat is paid for through the App Store, without us seeing the payment details.
- Market data: Pilot's prices come in from a data provider and no user data goes out to it.
Your rights, built in
Every database table has been protected by access rules from day one: whoever is signed in sees only their own data. Everything else you do yourself in the portal.
Nexxus ID- Access under Art. 15 GDPR: one button in the portal and your data arrives as a file.
- Deletion under Art. 17 GDPR: one email from the portal, usually confirmed within seven days.
- No password: you sign in with a code sent by email. There is no password anyone could steal.
Who is behind Nexxus
Phillip Kracht has been building Nexxus since May 2026, on his own. Before that he led the design department of a mid-sized company for many years, then built and ran an international online shop. In June 2026 he handed it to his business partner to focus entirely on Nexxus.
AI agents are his tools for building, checking and writing. He checks what they deliver rather than taking it on trust. For Butler he is his own target customer: he knows the problem from his own shop.
Products- Many years leading a design department
- Then built and ran an international online shop
- Building Nexxus since May 2026, alone
- Works with AI agents, checks what they deliver