Thalos Fitness Coach

Thalos GmbH

About this app

Medical disclaimer: Thalos Fitness Coach is a wellness and data-tracking companion app for use with Polar sensors. It is not a medical device and does not provide medical advice, diagnosis, or treatment. The information shown is collected from your sensor and your own logs and is presented for personal informational purposes only. Always consult a qualified healthcare professional for medical advice, diagnosis, or treatment, and before making any decisions about your health, fitness, nutrition, medication, or any medical condition.

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Thalos is currently in beta — giving early users first access to the future of science-based digital fitness coaching. Built for athletes who want to understand their body, train smarter, and push their natural limits, Thalos combines modern technology, individual data, and performance science. Our mission: deep hacking the human body to unlock your full natural potential.

No generic plans. No one-size-fits-all coaching. Thalos adapts to you — your physiology, recovery, habits, and performance patterns — so you can make better decisions every day.

Whether you're chasing a new personal best, building consistency, or optimizing recovery, Thalos helps you train intelligently, recover strategically, and perform naturally.

Thalos is a Vienna-based tech startup. Your data is securely stored in Europe.

Push your natural boundaries.
Be part of Thalos.

HEALTH CONNECT

Thalos Fitness Coach can read your body-weight, blood-glucose, heart rate, steps, sleep, and active-calorie entries from Android Health Connect (read-only) so they appear in your Thalos data dashboard alongside your Polar sensor recordings, meal logs, and training history.

• Body weight: most users record weight in a smart-scale app. Reading weight from Health Connect means you do not have to enter the same value twice — your weight trend simply appears in Thalos next to your training data.

• Blood glucose: values from your continuous glucose monitor or logging app appear next to your meals and training in Thalos so you can review how meals and training relate to glucose readings in one place.

• Heart rate: values from your watch, fitness tracker, or other sensors appear alongside your Polar sensor recordings, giving you a fuller picture of cardiovascular activity across devices.

• Steps: daily step counts from your phone or watch appear alongside your training sessions so you can see how baseline movement complements your sensor-tracked workouts.

• Sleep: rest data from your watch or tracker appears alongside your training and recovery so you can see how sleep relates to your training load and physiological metrics.

• Active calories burned: energy expenditure logged by your watch, fitness tracker, or other apps appears alongside your training sessions, giving you a daily activity total that includes movement outside of Polar sensor sessions.

Before granting access, the app shows a dedicated rationale screen (Settings → Health Connect → "Why does Thalos need this?") explaining what is read, why, and what we do not do. We do not write to Health Connect, do not modify or delete your records, and do not share your Health Connect data with third parties or use it for advertising. You can revoke access at any time from Health Connect or your device settings.

NOT A MEDICAL DEVICE

Thalos Fitness Coach is intended for general wellness and personal record-keeping. It is not a diagnostic tool, not a medical device, and is not a substitute for advice from a qualified healthcare professional.