Together for better cycle health
BodySeasons is the digital health journal for self-directed cycle tracking and professional support. We are looking for visionary partners, from coaches to health insurers, to make cycle health a lasting part of everyday life, the workplace, and medicine. Transparent, secure, and evidence-based.
As of 2026-07-24
One principle always applies: Users decide which data they record and who they share it with. Employers, health insurers, and other organizations never receive individual health or tracking data.
The greatest opportunity lies between days of absence
Hormonal symptoms rarely lead directly to sick leave, but they can consume enormous amounts of energy. The result at work is presenteeism: Employees are present but cannot reach their full potential because of pain or exhaustion. This is where smart health support begins, long before a day of absence.
These figures come from an internet-based cross-sectional survey using self-reports. They describe the starting point, not the specific effect of a BodySeasons pilot.
Why our approach makes a difference

BodySeasons as part of your workplace health or prevention program
BodySeasons can be included as a voluntary offer in a workplace health or prevention program. Together, we define the scope, support, and a privacy-conscious evaluation. Personal health data remains with users.
Four ways to work together
Every partnership begins with an open conversation. Our common ground is genuine value for users with complete data sovereignty.
What BodySeasons already delivers today
Documented features and documented technology, one sentence each. No roadmap promises.
Product facts
- Start without emailAn anonymous backup profile enables a start without an email address; a recovery code opens the profile again.
- 13 cycle profilesBodySeasons covers natural cycles, hormonal contraception and different life stages through 13 selectable profiles.
- Configurable trackingTracking areas can be enabled or hidden individually. Users decide which observations appear on their day view.
- Granular coach sharingCategories, free-text notes and the time period are selected separately. On withdrawal, the coach immediately loses access and the sharing data is removed from active storage.
- AnalysesPersonal cycle and monthly analyses summarise a selected completed period and can be saved as a PDF.
Security facts
- Self-managed hostingThe website and core services run on self-managed servers. BodySeasons uses no advertising or tracking SDKs.
- EncryptionData is transferred over HTTPS/TLS. Cloud-save copies, stored analyses, and shared coach data are encrypted server-side at rest with AES-256-GCM.
- Data minimisationFor automatic weather observations, you can voluntarily choose a city or postal code; BodySeasons does not request your device location. Coach data is limited to granted permissions on both client and server.
- GDPR-compliant processingRequested analyses also use purpose limitation, data minimisation, separate consent, documented data flows, and encrypted storage. Individual health data is not provided to cooperation partners.
Project ambition
The largest scientific cycle database in the world
What that means, and what it explicitly does not mean.