This is a courtesy translation. The legally binding version is the German original.
Terms of Use
Effective: April 20, 2026
1. Scope
These terms of use apply to the use of the mobile application "kerntrack" (hereinafter "App"), provided by:
kerntrack
Email: info@kerntrack.de
By using the App, you agree to these terms of use.
2. Service Description
kerntrack is an app for recording and analyzing calorie and macronutrient intake. The app offers:
- Recording meals and nutritional values
- Barcode scanner for food products
- Calculation of a daily calorie target
- Weight and progress tracking
- Water tracking
The basic version of the app is permanently free to use. Extended features can be unlocked through paid subscriptions (PRO, COACH).
3. Not a Medical Product
kerntrack is NOT a medical product and not a medical device within the meaning of Regulation (EU) 2017/745 (MDR).
The calculated calorie targets, nutritional information, and recommendations serve exclusively as general information and do not replace:
- Medical advice or diagnosis
- Nutritional medical advice
- Nutritional counseling by qualified professionals
For health issues, eating disorders, or special dietary requirements, please consult a doctor or qualified nutritionist.
4. User Account
A user account is optional. The app works fully offline without an account.
If you create an account:
- You are responsible for the security of your credentials
- You must provide a valid email address
- You confirm that you are at least 16 years old (or have parental consent)
We reserve the right to suspend accounts in case of misuse.
5. Data Protection
The protection of your data is particularly important to us. All health data is stored exclusively on your device.
Detailed information can be found in our Privacy Policy, which you can view at any time in the app.
6. Food Database
Nutritional data comes from the Open Food Facts database (https://world.openfoodfacts.org), an open, non-profit project.
We do not guarantee:
- Completeness of nutritional information
- Accuracy of product information
- Timeliness of data
For allergies or special dietary requirements, always check the original product packaging.
7. Paid Subscriptions
a) Prices and terms:
- PRO: €2.99/month or €29.99/year (save 16%)
- COACH: €7.99/month or €69.99/year (save 27%)
All prices include applicable VAT.
b) The kerntrack Honesty Promise:
- 14-day free trial — no credit card required
- 30-day money-back guarantee, no questions asked
- Cancel in 2 clicks — no hidden retention flows
- Export your data anytime (CSV/PDF)
- Monthly means monthly. The price is shown before purchase.
c) Billing:
Billing is handled through the Google Play Store (Android) or Apple App Store (iOS). The payment terms of the respective store apply.
d) Cancellation:
You can cancel your subscription at any time through the respective app store. After cancellation, access remains until the end of the paid period. Then you automatically switch to the free basic version — no data is lost.
8. Intellectual Property
All rights to the App, including design, code, text, and graphics, belong to the operator. The App may not be copied, decompiled, reverse-engineered, or otherwise modified, unless permitted by law.
9. Limitation of Liability
a) The App is provided "as is". We do not guarantee:
- Uninterrupted availability of the App
- Accuracy of calculated values
- Compatibility with all devices
b) Liability for damages arising from use of the App is — to the extent permitted by law — excluded. This applies in particular to:
- Health damage due to incorrect nutritional information
- Data loss on the device
- Damages caused by third-party services (Open Food Facts, Supabase)
c) The limitation of liability does not apply to intent, gross negligence, or breach of essential contractual obligations.
10. Changes to Terms of Use
We reserve the right to modify these terms of use. You will be notified in the app of material changes. Continued use after notification constitutes acceptance of the updated terms.
11. Applicable Law and Jurisdiction
The law of the Federal Republic of Germany applies. For consumers, the mandatory consumer protection provisions of their country of habitual residence apply where more favorable.
12. Severability Clause
Should any provision of these terms of use be or become invalid or unenforceable, the validity of the remaining provisions shall not be affected.
13. Contact
For questions about these terms of use:
Email: info@kerntrack.de