Privacy policy
In short: Pluko works without an account, cloud, ads or tracking. Your entries stay on your device. Below you'll find in detail which data goes where, and when.
Controller
This website
The website is hosted by Vercel Inc., 440 N Barranca Avenue #4133, Covina, CA 91723, USA. When you visit it, Vercel processes technically necessary data such as your IP address, date and time, the page requested, and your browser and operating system (server log files). This keeps the site secure and reliably available.
The legal basis is our legitimate interest in reliable operation (Art. 6(1)(f) GDPR). We have a data processing agreement with Vercel; transfers to the USA are covered by the EU Standard Contractual Clauses.
We use no analytics or tracking services and no ads. Fonts are served from our own server, not by third parties. We pick the page language automatically from your browser’s language setting.
If you switch the language manually, we remember your choice in a cookie named “NEXT_LOCALE”. It holds only the language code (e.g. “de”) and is deleted after one year. It is technically necessary so the site respects your choice on your next visit (§ 25(2) no. 2 TDDDG, Art. 6(1)(f) GDPR). We set no other cookies.
The app: data on your device
Pluko needs no account. The details for your daily goal (e.g. weight, height, age, sex and goal), your entries and your history are stored only locally on your device. We have no access to them. If you delete the app, this data is gone.
The app uses photos only for recognition; they are not stored in the app. It asks for permission before accessing the camera or photo library.
The app: AI recognition
When you take a photo or describe your meal, the app sends the photo or text to our server (hosted by Vercel, see above). The server passes the request on to the AI “Claude” by Anthropic PBC, 548 Market Street, PMB 90375, San Francisco, CA 94104, USA, and returns the estimated nutrition values to you. We store neither the photo nor the text.
Anthropic processes the data on our behalf and does not use it to train its models. Transfers to the USA are covered by the EU Standard Contractual Clauses. Please photograph only your food – no people or other personal items.
The legal basis is providing the feature you use (Art. 6(1)(b) GDPR).
The app: daily limit and error logs
To prevent misuse of the recognition, there is a daily limit. For this, the app creates a random installation ID on first launch that reveals nothing about you, and sends it with every recognition. Our server counts the requests per ID and day with the database service Upstash, Inc. (USA). The counters delete themselves automatically after 48 hours at the latest.
If errors occur, our server logs technical details such as the time and type of error – without photos or text.
The legal basis is our legitimate interest in running the service reliably and protecting it from misuse (Art. 6(1)(f) GDPR). Transfers to the USA are covered by the EU Standard Contractual Clauses.
The app: Apple Health and Health Connect
If you allow it, Pluko reads your burned active calories from Apple Health (iOS) or Health Connect (Android) to add them to your daily budget. This data stays on your device, is never transferred to us or third parties and is never used for advertising. You can revoke access at any time in your system settings.
Your rights
You have the right to access, rectification, erasure, restriction of processing, data portability and to object (Art. 15–21 GDPR). Just send us an email. Since your entries only live on your device, we usually hold no data that we could link to you.
You can also lodge a complaint with a data protection supervisory authority, for example the State Commissioner for Data Protection and Freedom of Information of North Rhine-Westphalia.
Changes
We update this policy when the app or the website changes. The version published here applies.
Last updated: October 2026
This is a translation for your convenience; the German version is legally binding.