Updated on 16 SEPTEMBER 2026

Disclaimer

“This is the part where I’m serious. Read all of it: it’s about your health.”

NOT A MEDICAL SERVICE

Cestral is a training and fitness application. It is not a medical device or a healthcare service, and its content does not constitute medical advice, diagnosis or treatment. The assistant, Leo, is not a healthcare professional.

CHECK BEFORE YOU START

Consult a healthcare professional before starting this or any other exercise programme, particularly if any of the following apply:

PLANS ARE AUTOMATED SUGGESTIONS

Plans, weights, reps and rest periods are calculated automatically from the data you enter. If that data is wrong, so is the result. The system can get it wrong: you are the one who decides, on every set, whether the load is right.

Execution technique is your responsibility. If you do not know an exercise, learn its technique with a professional in person before loading it.

IF SOMETHING GOES WRONG

Stop exercising immediately and seek medical attention if you experience chest pain, difficulty breathing, dizziness, fainting, blurred vision, palpitations or sharp joint or muscle pain. In an emergency, call your local emergency number (112 in the European Union).

HEALTH DATA

The metrics the application shows, whether its own or from Apple Health, are for information only. They are not intended to diagnose, treat or prevent any disease, and their accuracy depends on the device measuring them.

NO GUARANTEED RESULTS

Results depend on individual factors such as genetics, rest, nutrition, stress and consistency. The application does not guarantee any particular outcome in strength, weight or body composition.

MINORS

Strength training by minors should be carried out under the supervision of a responsible adult and, preferably, a qualified professional.