Last updated: 28 June 2026

This Privacy Policy explains how NK Productions, owned by Nikita Krebs ("Centa", "we", "us") collects, uses, and protects your information when you use the Centa mobile application (the "App"). We are the data controller responsible for your personal data.

Contact: [email protected] · St.-Florian-Ring 13b, 21217 Seevetal, Germany

We take your privacy seriously. We only collect what we need to run the App, and we never sell your personal data.

1. Who this applies to

This policy applies to everyone who downloads, registers for, or uses Centa. Centa is intended for users 16 years of age or older. We do not knowingly collect data from children under 16.

2. What data we collect

We collect the following categories of data, all of which you provide or generate by using the App:

Account & identity

• When you sign in with Sign in with Apple, we receive a unique Apple user identifier and, if you choose to share it, your name and a (relay or real) email address. We do not receive your Apple password.
• A Centa account identifier generated by our backend.

Profile & onboarding answers

• Your first name and personal preferences.
• Your responses during onboarding, which may include goals, habits you have tried, your main challenge, activity level, available daily time, motivations, and obstacles.
• Health- and body-related inputs such as current weight and goal weight, where you choose to provide them. We treat this information as sensitive (see Section 7).

Activity & progress data

• Daily check-ins: completed tasks, mood, journal notes/reflections, and your streak and completion history.
• Progress photos that you capture with the camera or select from your photo library.

Technical & subscription data