About Clue

Clue is a period tracking app, a trusted menstrual health resource, and a thought leader in the FemTech movement. By combining science and technology, we are actively changing the way people learn, access, and talk about menstrual and reproductive health around the world.

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  • Lade die Clue App im Play Store herunter
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Clue Birth Control

Our FDA-cleared digital contraceptive.

Learn more
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a woman holding a smartphone
a woman holding a smartphone

Coming soon

to the US

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An image of two women sat at a breakfast table looking at a phone

12 million people in over 190 countries rely on our app. Our content is science-based and written by reproductive healthcare clinicians and science writers to provide people with essential, evidence-based education about health, periods, and sex via helloclue.com.

12 million people in over 190 countries rely on our app.

Our content is science-based and written by reproductive healthcare clinicians and science writers to provide people with essential, evidence-based education about health, periods, and sex via helloclue.com.

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monatliche App-Nutzer:innen

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monatliche Online-Leser:innen

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wissenschaftlich fundierte, faktengeprüfte Artikel

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Mitarbeiter:innen

We strive to create an app that’s accessible to our diverse community of users, taking into account gender, age, race, ethnicity, accessibility, education, country of origin, socioeconomic status, and all the other aspects of an individual's background. Clue is currently available in 15 languages and growing.

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What is “femtech”?

One of Clue’s co-founders, Ida Tin, coined the term femtech in 2016 to define the group of technologies that are designed to support and advance women’s healthcare.

The technologies within this category include fertility solutions, period and fertility tracking apps, reproductive system health care, women’s sexual wellness products, pregnancy and nursing care, period care goods, at-home fertility monitoring devices and general healthcare.

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An image of Ida Tin; Co-founder and Chairwoman at Clue

Ida Tin, 

Co-founder & Chairwoman

Ida knew immediately that in order for these products to be taken seriously, the market needed to be defined, so she suggested that Clue should begin to call itself a femtech company.

By defining the group of products that are associated with female health, we are creating an entirely new category of technology. Grouping these technologies paves the way for femtech conferences and VC’s to invest in femtech and create even more products within this segment that are important and needed in the world.

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Mission

Our mission is to empower women and people with cycles with the science, data, and technology needed to make informed choices about their lives.

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Vision

No matter where they are from or how they identify, our vision is for people with cycles to live in tune with their biology, not in spite of it.

Values

Trust

We earn trust from our users by honoring their privacy, being transparent about how we use their data, and providing them with honest and accurate health information.

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Care

Care is at the core of everything we do, both in how we support and communicate with our users and in the products and technology we provide them with. We genuinely wish to help them improve their lives and live more fully.

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Science

Clue’s brand and products were born out of research and data. We continually strive to find the most accurate, forward-thinking information on menstrual and reproductive health, only sharing what we confidently believe in and can provide evidence for.

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Unsere Geschichte

2012

Clue wird von Ida Tin, Hans Rauffauf, Moritz von Buttler und Mike LaVigne in Berlin gegründet

2013

Launch der Clue App für iOS

2014

Launch der Clue App für Android

Clue erhält eine Seed-Finanzierung i. H. v. 500.000 EUR

2015

Hit 3 million monthly active users

2016

American College of Obstetrics and Gynecology (ACOG) rated Clue the number one period tracking app

2017

Clue Plus, our premium app version, is launched

Launched our #justsayperiod campaign

2018

Clue launcht eine neue Website mit Content: helloclue.com

2019

Clue launcht seine „Unregelmäßige Zyklen“-Funktion, die Nutzer:innen dabei hilft, PCOS-Symptome zu erkennen

Clue launcht die erste Staffel des Podcasts „Hormonal“ auf iTunes, Spotify und SoundCloud

2020

Launched Pregnancy Feature

Added Content tab to the app

Released Season 2 of podcast “Hormonal”

2021

Received FDA clearance for Clue Birth Control

Audrey Tsang and Carrie Walter become Clue’s co-CEOs

Clue introduces a 4-day work week

4.8

Ein Bild einer Fünf-Sterne-Bewertung

über 2M+ Bewertungen

Zufriedene Nutzer:innen von Clue

Unsere Nutzer:innen lieben uns.

Hier sind ihre Erfahrungsberichte:

Lifechanging!!!

"Accurate, informative, easy to use! The clean and fun design makes tracking your cycle, dare I say, fun?"

Nicole Layton

Amazing app

"Clue is such an invaluable app! As someone with PCOS and other health conditions that contribute to painful and irregular cycles, Clue has helped me to see patterns in my cycle."

Sophie Purdie

Best period tracker!

"This app is almost scary with how accurate it is in prediction of ovulation and menstruation times. I'd give 10 stars if I could."

Esther Mungai

At Clue, we like to challenge traditional notions of what leadership and success looks like. We believe that the so-called “hero leader” model where one individual dominates leadership, is outdated. That’s why we are proud to introduce Carrie Walter, formerly Clue’s General Counsel, and Audrey Tsang, formerly Clue’s Chief Product Officer, as Clue’s Co-CEOs. We’ve chosen this setup because it’s agile, our Co-CEOs’ skill sets complement each other, and it increases the learning edge at every turn.

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Carrie Walter & Audrey Tsang, Co-CEOs

Leadership

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Audrey Tsang Co-CEO

a photo of Carrie

Carrie Walter Co-CEO

A photo of Antonia

Antonia Seffen VP of Finance

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Greg Ryzhov CTO

A photo of Sarah

Sarah Ottawa Head of People

A photo of Lynae

Lynae Brayboy Chief Medical Officer

A picture of Amanda

Amanda Shea Head of Science

Clue Birth Control

Our FDA-cleared digital contraceptive.

Learn more
a woman holding a smartphone
a woman holding a smartphone
a woman holding a smartphone

Coming soon

to the US

We’re always working on something exciting.

Check out the links below to see what we've been up to.

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Clue Period Tracking App

Available on iOS and Android, the Clue app features cycle predictions, analyses, and educational content.

Read more here

Read more **here**
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Clue Encyclopedia

We create content around menstrual health, written and fact-checked by clinicians and science writers.

Read more here

Read more **here**
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Hormonal Podcast

A podcast about hormones and how they shape our world, hosted by Rhea Ramjohn.

Read more here

Read more **here**
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Clue webinars for clinicians

Our CMO, Dr. Lynae Brayboy, leads webinars for continuing education for clinicians.

Read more here

Read more **here**
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Clue Press

Our work and leadership has been praised by some of the world’s leading publications.

Read more here

Read more **here**
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Clue Privacy Policy

Data privacy is at the core of what we do: we never have, and never will, sell our users’ data.

Read more here

Read more **here**
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Clue Careers

Looking for a new role? Want to make a real change? Check out our vacancies, we’d love to hear from you.

Read more here

Read more **here**
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Support Clue

Want to support us in improving menstrual health and education? We are grateful.

Read more here

Read more **here**
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Clue Newsletter

Subscribe to our newsletter to get science-backed articles and our latest updates.

Check out what goes on behind the scenes at Clue

About Clue

Clue is a menstrual tracking app, an encyclopedia, a resource for your health, and more. Here are all the posts...

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