Is Natural Cycles° right for you?

How it works

Choose a device

Use our free thermometer when you sign up. Or sync our app with your Apple Watch or Oura Ring.

Take your temperature

Use your chosen device to take your temperature right when you wake up.

Open the Natural Cycles app

The app shows you your fertility status, cycle trends, and helpful insights.

How effective are other forms of birth control?

NON-HORMONAL


Natural Cycles°

Natural Cycles App

93%

Copper IUD

Copper IUD

99%

Condom

Condom

87%

HORMONAL


Hormonal IUD

Hormonal IUD

99%

Vaginal Ring

Vaginal Ring

93%

Contraceptive Pill

Contraceptive pills

93%

Natural Cycles

Backed by science, the Natural Cycles° algorithm is powered by your body temperature.

Inside the app

Unlock

Our FDA Cleared algorithm uses your temperature to identify fertile and non-fertile days.

Track

Log mood, energy, and more to see how your cycle impacts you.

Learn

Customized insights and expert content to help you understand your unique experience.

Hear directly from Cyclers like you

4.8

57.7K+ ratings in the App Store

Join Our Community

#NaturalCycles

Natural menopause is deemed to have occurred after 12 consecutive months without menstruation for which there is no other obvious physiological or pathological cause & in the absence of clinical intervention 🗓️⁠
⁠
The menopausal transition can be gradual, usually beginning with changes in the menstrual cycle. Perimenopause refers to the period from when these signs are first observed and ends one year after the final menstrual period 💭 Follow the link in our bio to learn more 🔗Miscarriage and pregnancy loss are different for everyone 💛🫂Time to lock in 🤝🫡It's giving... unbalanced 🙃⁠
Follow the link in our bio to learn more on this topic 🔗

Common questions

You must be over the age of 18.Does not protect against STIs.

FDA Cleared

Natural Cycles is 93% effective with typical use, 98% effective with perfect use. No method of contraception is 100% effective. Natural Cycles does not guarantee that you cannot get pregnant, it only informs you whether and when you can become pregnant based on the information that you enter into the application.