Precision insights for your fertility journey

YON E is a lifestyle destination for Cycle-Aware women, blending clinical insight, fertility awareness, and elevated feminine wellbeing into one curated ecosystem.

The first real-time device designed to monitor vaginal pH and temperature for fertility, cycle tracking, and early diagnostic insight.

For the first time, precision meets intuition

YON E integrates advanced pH-sensing technology and precise temperature monitoring into one thoughtfully designed device. We’ve reimagined how women monitor their vaginal health — moving beyond monthly tracking to real-time insights that matter.

Women’s health has been overlooked for far too long. The lack of precise, data-driven solutions for the female microbiome, vaginal, and reproductive wellness leaves a critical gap in healthcare and fertility support.

We’re changing that, bringing science, technology, and real-time insights together to empower women with the knowledge they deserve.

Where Cycle Intelligence Meets Modern Femininity

Unmatched precision

Our device provides unprecedented accuracy in tracking vaginal pH and temperature variations, integrating these measurements with personalized lifestyle data to give you a complete picture of your reproductive health.

Unmatched elegance

Thoughtfully Dutch-Designed and European precision with both comfort and accuracy in mind. Every aspect of YON E has been crafted to support your fertility journey while prioritizing your experience.

Strength. Intelligence. Beauty.

We understand that women’s health is a full-cycle journey, from first cramps, to fertile windows, to pregnancies, and that every stage deserves both scientific precision and deeply thoughtful care. That’s why we partner with Europe’s leading specialists and medical engineers to create technology that is as sophisticated as it is seamless.

Research & Development Phase

YON E is currently seeking strategic partnerships and investment to advance our medical device through clinical trials and regulatory approval.

For Medical Partnerships

Join our clinical validation studies and help advance vaginal pH monitoring technology.

For Investment Inquiries

Join us in revolutionizing vaginal health monitoring. Currently raising pre-seed investment.

For Industry Partners

Connect with our R&D team to explore clinical trial collaboration opportunities and future distribution channels.

Holistic Integration

Personalized cycle insights

Fertility optimization

Sexual wellness tracking

Pregnancy & postpartum support

Science-backed wellness recommendations

Technical Excellence

Real-time vaginal pH monitoring

Core temperature tracking (0.3°C-0.7°C variation)

Medical-grade pH sensors

Wireless charging capability

European privacy standard encryption

Smart Experience

Intuitive companion app

Personalized health patterns

Private data dashboard

Expert-backed content

Seamless lifestyle integration

Key features

Data
Privacy

Your health data is protected by uncompromising European privacy standards and secure encryption protocols, ensuring complete confidentiality of sensitive information.

Clinical
Precision

Advanced sensor technology measures vaginal pH levels with medical-grade accuracy, validated through ongoing clinical testing.

Personal
Insights

Our intelligent system transforms precise measurements into meaningful health patterns, while maintaining compliance with medical device regulations and safety standards.

Why Vaginal Symptoms Often Appear Before Clinical Diagnosis

Introduction: When the Body Speaks Before the Tests Do Many women experience vaginal symptoms that feel real and persistent, yet clinical tests initially return normal results. Changes in discharge, mild irritation, altered sensation, or subtle discomfort are often dismissed as transient or non-specific. However, research in vaginal biology increasingly supports

Team

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Roswitha Verwer

Founder/CEO & CBO

Roswitha Verwer
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