What this is

This is a personal, single-user health and fitness optimization project belonging to David Yellin (Covert Science GmbH). It exists to support David Yellin's own training, recovery, and health tracking — it is not a commercial product, and it is not offered to the public.

This page exists solely to satisfy third-party API providers (e.g. wearable device platforms) that require a Privacy Policy and Terms of Service URL before issuing API credentials for personal use.

Terms of use

This project has exactly one authorized user: David Yellin. Use of any application, integration, or data connected to this project by anyone other than David Yellin is prohibited.

No warranty, support, or service availability is offered or implied. This is not a public service and nothing here should be relied upon by any third party.

Privacy policy

All data collected, accessed, or processed by this project — including any data pulled from connected third-party APIs (calendars, wearables, fitness platforms, etc.) — belongs solely to David Yellin.

No data is shared with, sold to, or made accessible to any third party. Data is used exclusively for David Yellin's personal health and fitness tracking.