The science of

Clue Birth Control

Clue Birth Control is a feature of your trusted and beloved Clue app.

Clue Mobile App

Use your phone to track your periods in the app and prevent pregnancy without a thermometer, a pill, or hormonal side effects.

Clue Mobile App
Clue Mobile App

Everything you need to know about the science of Clue Birth Control

An illustration of the FDA logo

The importance of FDA clearance

Clue Birth Control is a feature of the Clue app that is an FDA-cleared software application for contraception.

An illustration of a percentage sign

Efficacy of Clue Birth Control

With typical use, Clue Birth Control is 92% effective; with perfect use, it is 97% effective.

An illustration of a drop of blood

How the Clue Birth Control algorithm works

Clue Birth Control’s algorithm uses your period start dates to predict high and low risk days of pregnancy.

An illustration of a caution sign

High and low risk days

On low risk days, you don’t need to use protection; on high risk days, you need to use condoms or avoid sex that may result in pregnancy.

An illustration of a phone

A new kind of Fertility Awareness-Based Method

Clue Birth Control is a new kind of Fertility Awareness Based Method (FABM) of contraception that is enhanced by your tracked periods and app technology.

Ready to experience the
future of digital contraception?