Terms of use

By using the Selfspan app, you accept these terms. Read the health section in particular.

1. The app is not a medical device

The app is for logging and tracking health habits and data and for giving general information. It doesn't make diagnoses, doesn't replace consultations, tests or treatments and shouldn't be used for medical decisions. The goals for calories, macros, water, ideal weight, readiness and the fasting phases are estimates based on formulas and population averages, and may not apply to you.

2. Fasting and changes to your diet

Talk to a health professional before fasting or making big changes to your diet or exercise, especially if:

• you have diabetes or take medication that lowers blood sugar or blood pressure;
• you're pregnant or breastfeeding;
• you have or have had an eating disorder;
• you have heart, kidney, liver or another chronic disease;
• you're under 18 or underweight.

If you feel strong or unusual symptoms, stop and seek medical help. In an emergency, call your local emergency number.

3. Measured values

Values coming from watches, scales and other apps depend on the accuracy of those devices. The vitals classifications (for example, blood pressure) follow published references, but only a health professional can interpret them in your case.

4. Your data

The data is yours and stays on your phone (see the Privacy policy). You're responsible for making backups; the app helps with automatic backups, but we can't recover lost data.

5. Third-party services

Nutrition information comes from Open Food Facts, a collaborative database (ODbL license) that may contain errors. The connection to Health Connect and Apple Health is subject to the rules of those services and of the apps that write to them.

6. Liability

The app is provided "as is". To the maximum extent permitted by law, we're not liable for damages resulting from the use of the app or from decisions made based on the information it shows. Nothing in these terms limits rights the law grants you as a consumer.

7. Changes and governing law

These terms may be updated; the app lets you know and asks you to accept them again. The law of Portugal applies. Contact: n2kay.base@gmail.com. Last updated: October 23, 2026.