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Eirini Rapti

inne by Feral GmbH
inne by Feral GmbH
Year Selected

Berlin, Germany

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Eirini is the CEO and founder of inne. She started inne in 2017 motivated by her own desire to use natural contraception, but realised that traditional natural fertility methods were almost impossible to use reliably in real life. She was determined to find a way of leveraging technology to enable all women to have a greater understanding of their bodies and take control of their contraceptive choices so that they could make the most of their careers and relationships.

Eirini set about developing a saliva biosensor device that enables women to identify and predict the fertile phase in their natural cycle. Based on her own experience and through multiple user interviews, Eirini understood that a new product had to be compatible with a busy daily life, simple and hygienic to use, and more insightful than the period-tracking apps already on the market.


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inne by Feral GmbHCEO and Founder at inne

Year Founded


Year Selected



Early Growth (Series A, Series B)

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Healthcare & Life Sciences

Consumer Health & Wellness

Digital Health & Telehealth

Wearables, Devices and Hardware

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