Are you a midwife, fertility counsellor or physician?A professional?Discover Ovulate Pro →

Cycle health,
sovereign and shared

Ovulate is a cycle-tracking and symptothermal platform designed for women, couples and the professionals who support them — with one absolute requirement: your health data stays in Europe, under your control.

HDS-certified hosting100% sovereign & EuropeanEnd-to-end encryption
Two areas

One ecosystem, two ways in

For you

Ovulate

The everyday app to track your cycle with the sympto-thermal method, on your own or as a couple, with secure exchanges with your instructor — your data stored locally on your phone.

Discover the app →
For professionals

Ovulate Pro

The first practice-management tool designed for the sympto-thermal method: patient records, scheduling, messaging, secure teleconsultation and payment links.

Discover Ovulate Pro →
The project

Understanding your body, together, with confidence

Ovulate was born from one conviction: cycle tracking should be neither a mental load carried by one person alone, nor a commodity monetised by foreign actors.

Mental load, shared

Cycle tracking concerns both partners. Ovulate enables simple, consent-based sharing of observations within the couple, so everyone can take part in the household's reproductive health.

Sovereignty by design

Health data under Article 9 of the GDPR: Ovulate relies exclusively on HDS-certified European infrastructure, out of reach of extraterritorial legislation (Cloud Act, FISA).

Symptothermal method, taken seriously

Basal temperature, cervical mucus observation, peak day: Ovulate supports a recognised method with scientific rigour, and is preparing for connected temperature sensors.

Our expertise

Midwife expertise, in service of your observation.

Ovulate builds on the principles of the symptothermal method, a scientifically documented approach to cycle observation with decades of research behind it. Its implementation is validated by midwife expertise, guaranteeing the rigour of every reading rule.

Two independent indicators — temperature and cervical observation — confirm each other before any conclusion about your fertile window. This double check is what separates a rigorous observation method from a simple average-based calculation.

Frank-Herrmann & Gnoth, 2007Rötzer, 1965Gnoth et al., 1996
The app

Your cycle's everyday companion

One app, to track your cycle with the sympto-thermal method wherever you are.

Mobile app · iOS & Android

Ovulate

Your daily cycle companion: measurement entry, temperature charts, peak-day detection and educational content — stored locally on your device, with a secure link to your instructor and your partner if you wish.

  • Clear, readable cycle tracking and symptothermal charts
  • Your data stays on your phone until you share it: local-first approach, no account required
  • Smart reminders and notifications for temperature taking
  • Chat directly with your instructor, with secure, end-to-end encrypted messaging
  • Share your cycle with your partner, simply and with your consent
  • Coming soon: connected temperature sensor (Bluetooth) for automatic overnight measurements

Coming soon

Data security

Your health data, protected by design

A sovereign architecture designed from day one for the most sensitive data.

Infrastructure · Trust

A sovereign platform

Beneath the apps, an architecture designed from day one for health-data protection — not bolted on afterwards.

  • European HDS-certified hosting (French health-data hosting standard)
  • End-to-end encryption for sharing: even our servers cannot read your shared data
  • Reinforced GDPR compliance (Art. 9): explicit consent, right to erasure, portability
  • Full audit trail of record access: who viewed what, and when
100%
Sovereign European hosting
HDS
Health-data certification
0
Data sold or monetised
E2EE
End-to-end encryption
FAQ

Your questions, answered plainly

How is Ovulate different from a calendar app?

A calendar app computes an average. Ovulate applies the sympto-thermal method: it cross-checks temperature against cervical observation, day after day, to reflect your actual cycle rather than a statistic.

Is the sympto-thermal method reliable as contraception?

Properly learned and applied, the sympto-thermal method is a scientifically documented observation method. Ovulate is a tracking and observation tool: it replaces neither learning the method nor the advice of a healthcare professional.

What can my partner or my healthcare professional see?

Only what you explicitly share, through a linking code you generate yourself. Sharing can be revoked at any time, from your side.

Can I take my data with me if I leave Ovulate?

Yes. Full export of your data is a GDPR right, and a built-in feature of the app — your data is never locked in.

Do I need an account to use the mobile app?

No. The app is local-first: your measurements stay on your phone. An account is only required for sharing features.

Pricing

Two plans, from free tracking to the full method

From simple cycle tracking to full sympto-thermal interpretation.

Indicative pricing, currently being tested.

Free

€0
No commitment
  • Basic cycle tracking
  • Cycle calendar
  • Without full symptothermal interpretation
Start for free

Want to know more?

Are you a health professional, a partner, or simply curious about the project? Write to us — we'd love to talk.

contact@ovulate.fr