Natural Cycle intro

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Guidance for healthcare professionals

The non-hormonal, FDA Cleared birth control app

Explore the software application for contraception that’s clinically proven & backed by science.

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FSA HSA Eligible Logo
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Clinical effectiveness

NC° Birth Control’s effectiveness and safety has been demonstrated across 10 peer-reviewed clinical studies, including one of the largest analyses of its kind. The real life effectiveness of the method remains inline with published rates.

NC° Birth Control Pearl Index

7 out of 100 became pregnant within one year

5 from incorrect use (unprotected intercourse on fertile days)

2 despite perfect use

of which 0.5 from app incorrectly identifying a non-fertile day

How NC° Birth Control works

The AI-enhanced algorithm behind the app confirms each user’s daily fertility status by analyzing temperature data, menstrual data & optional LH tests. To prevent pregnancy, users agree to abstain or use protection on fertile days.

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See how it works

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How biometric data is collected

Data auto-syncs to the Natural Cycles app

Natural Cycles Thermometer
NC° Thermometer

Measure upon waking, sync via Bluetooth

Oura Ring
Oura Ring

Monitors temperature trends during sleep

Apple Watch
Apple Watch

Monitors temperature trends during sleep

Dr. Kraus explaining

Patient eligibility

NC° Birth Control may be a good option for those seeking a non-hormonal, non-invasive birth control method.

NC° Birth Control is suitable for those who:

  • Are 18 years or older
  • Agree to use protection or abstain on fertile days
  • Cannot tolerate hormonal contraception
  • Currently use a period tracker or less effective method

Comparison of contraceptive effectiveness data

NC° Birth Control is more effective than calendar-based FABMs and is in the same effectiveness category as the pill.

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NC° Birth Control
93% Typical use
98% Perfect use
Typical use
Perfect use
Copper iud
IUD
>99%Typical use
>99%Perfect use
Birth Control Pill
Contraceptive pill
93%Typical use
>99%Perfect use
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Natural Cycles°
93%Typical use
98%Perfect use
illustration of a male condom
Male condom
87%Typical use
98%Perfect use
hand with crossed fingers
Pull out method
80%Typical use
96%Perfect use
Calendar Method
Calendar method
88%Typical use
95%Perfect use

Percentage of typical/perfect users who did not get pregnant with the method over one year of use. Reference: Contraceptive Technology (Table 5-2). 22nd Edition, 2023

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Insurance coverage

Natural Cycles is the first FDA Cleared software application for contraception. It’s covered by most major commercial health plans in the US.

What’s covered?

When the application is used as birth control with an annual subscription, there are $0 out-of-pocket costs when obtained with a prescription. A Bluetooth thermometer is included.

How patients get reimbursed

  • Patient checks their plan’s reimbursement benefits

  • Doctor completes prescription form, if needed

  • Patient submits receipt for reimbursement after purchase

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Advanced data protection

As a regulated medical device, the Natural Cycles app is designed to comply with FDA cybersecurity requirements, and uses advanced security protocols to protect data privacy.

Identity protection with Go Anonymous

In this optional mode, personal identifying information is separated from fertility data. This means that no one — not even Natural Cycles — can link a user to their data.

How users are protected

  • Comprehensive privacy protection program

  • Pseudonymization & encryption practices

  • The option to use the app anonymously

Meet the NC° Medical Advisory Board

Access educational resources

Download printable resources developed by the Natural Cycles Medical & Science Team.

Backed by research

Our dedicated on-staff Medical & Research Team has published over 20 peer-reviewed studies, advancing our mission to empower women and further the field of female health.
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Ohsu logo
NIH logo
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Princeton University
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Common questions

Get in touch with a medical expert

Contact us about potential partnerships or research collaborations, to get more information, or to access a demo.

Dr Kerry Klaus
Dr. Kerry Krauss OB-GYN & Medical Director for Natural Cycles

Add your details here and we'll get in contact.

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