Natural Cycles - Birth Control App

Natural Cycles - Birth Control App

A new form of birth control. Scientifically proven, FDA cleared and hormone-free

Natural Cycles - Birth Control App
Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App Natural Cycles - Birth Control App

Choose Natural Cycles - the only birth control app that is cleared by the FDA in the US and CE-marked in Europe as a medical device - and take birth control into your own hands.

Particle physicist Dr. Elina Berglund initially developed Natural Cycles to offer women an effective non-hormonal method of birth control. The app identifies ovulation by analyzing basal body temperature letting you know when you're fertile and when you’re not. Natural Cycles is different from fertility and period trackers as it is a clinically proven birth control option alongside the pill IUD and the condom.

What you get with Natural Cycles

○ Effectiveness - the app is FDA-cleared in the US and CE-marked in Europe
○ Knowledge of when you're fertile and when you're not
○ Reliable ovulation detection and predictions
○ Personal insights around your cycle enabled by our proprietary algorithm
○ Useful notifications including PMS alerts and when your period is due

Birth control effectiveness

Natural Cycles is 93% effective with typical use and 98% effective with perfect use. The clinical study that determined Natural Cycles' effectiveness is one of the largest of its kind with 15000 women and 600000 menstrual cycles. It was peer reviewed and published in the renowned journal Contraception.*

For added context the pill is 91% effective with typical use and >99% with perfect use and the IUD is one of the most effective form of birth control with both typical and perfect use >99%. That said there is no 'one size fits all' and the choice of birth control is very individual from woman to woman.

Our Story

Natural Cycles was founded by the couple Dr. Elina Berglund and Dr. Raoul Scherwitzl who wanted an effective method of birth control that was hormone-free and non-invasive. As a former member of the European Organisation for Nuclear Research (CERN) Elina was part of the team that discovered the Higgs Boson particle – one of the most significant discoveries in particle physics that went on to win a Nobel Prize.

Using the techniques she had learned through the Higgs Boson project Elina created an algorithm to analyze temperature readings taking factors like sperm survival temperature fluctuations variations in cycle length ovulation day and the length of the follicular and luteal phase into account to identify fertile and non-fertile days. Raoul suggested that they would turn the fertility algorithm into an app to allow other couples to benefit from their innovation. Natural Cycles was born.

Pricing plans

○ Yearly plan $89.99/year.
○ Monthly plan $9.99/month.
○ A subscription is needed to use the app. A free demo mode is available.


○ Natural Cycles does not protect against sexually transmitted infections (STIs). Use a condom to protect against STIs.
○ No method of birth control is 100% effective even when using the birth control app perfectly you can still have an unintended pregnancy.
○ Natural Cycles is for women over the age of 18.
○ Natural Cycles is only available as a method of birth control in the US and in Europe.
○ To use Natural Cycles you need to understand English or one of the supported languages.

Before you start using Natural Cycles read the User Manual Terms of Use and Privacy Policy.
► User Manual
► Terms of Use
► Privacy Policy

*E. Berglund Scherwitzl et al. “Perfect-use and typical-use Pearl Index of a contraceptive mobile app” Contraception Volume 96 Issue 6 420 - 425.


About this version (4.1.3)

This new update brings you small changes to make your Cycling experience even better!

Other versions

4.1.2 released on 03 March 2021 (38 days ago)
4.1.1 released on 25 February 2021 (44 days ago)
4.1.0 released on 15 February 2021 (54 days ago)
4.0.8 released on 12 January 2021 (88 days ago)
4.0.7 released on 15 December 2020 (116 days ago)
4.0.6 released on 01 December 2020 (130 days ago)
4.0.5 released on 17 November 2020 (144 days ago)
4.0.4 released on 05 November 2020 (156 days ago)
4.0.3 released on 21 October 2020 (171 days ago)
4.0.2 released on 06 October 2020 (186 days ago)
4.0.1 released on 23 September 2020 (199 days ago)
4.0.0 released on 14 September 2020 (208 days ago)
3.5.3 released on 25 August 2020 (228 days ago)
3.5.2 released on 18 August 2020 (235 days ago)
3.5.1 released on 03 August 2020 (250 days ago)
3.5.0 released on 08 July 2020 (276 days ago)
3.4.11 released on 22 June 2020 (292 days ago)
3.4.9 released on 19 May 2020 (326 days ago)

Details and Recent Ratings

Size: 12 MB
Version: 4.1.3 by
Updated: 24 March 2021 (17 days ago)
Installations: more than 500 000
Natural Cycles - Birth Control App
5 Stars: 12152
4 Stars: 1854
3 Stars: 269
2 Stars: 209
1 Star: 618

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