Natural Cycles
Editor's pickA hormone-free birth control app: FDA-cleared and based on your body temperature.
4.8· 30,399 ratings on the App StoreQuick facts
- Paid only
- Doesn't sell data for money
- Some data used for ads
- Delete your data on request
From Natural Cycles's own pages, checked . See the sources
What is Natural Cycles?
Natural Cycles uses your body temperature and cycle data to show your daily fertility status 🌡️ Its NC° Birth Control mode is cleared by the US FDA as a birth control app: an algorithm analyses your temperature readings to identify ovulation and shows the days when you need protection. You measure overnight with the NC° Band or a compatible wearable, such as Oura Ring, Apple Watch or certain Garmin devices. Other modes support planning a pregnancy, pregnancy, postpartum and perimenopause, alongside symptom and mood logging, cycle insights, a partner view and an education library. It's a subscription from NaturalCycles Nordic AB for adults over 18 on iOS and Android, and it does not protect against sexually transmitted infections.
Screenshots
Screenshots from the App Store.
Who Natural Cycles is for
Adults over 18 who want hormone-free birth control, or support with planning a pregnancy, pregnancy, postpartum and perimenopause.
What Natural Cycles does
- NC° Birth Control: a daily fertility status from your temperature and cycle data
- NC° Plan Pregnancy: identifies your most fertile days
- Modes for following a pregnancy, postpartum and perimenopause
- Overnight temperature from the NC° Band or compatible wearables like Oura Ring and Apple Watch
- Log symptoms, mood and energy
- A partner view of your cycle phase and fertility status
- Cycle insights and an education library
Natural Cycles pricing
Prices change and differ by country. Each line shows where and when we read it.
- Free version
There is no free version.
US App Store listing. The terms of use say free trials may be offered from time to time.
“Subscribe to our monthly or annual plan to unlock core features.”
Source: apps.apple.com · checked Nov 11, 2026
- Paid plan
$21.99/month or $149.00/year
Natural Cycles subscription, US App Store In-App Purchases.
“Monthly $21.99 Annual $149.00”
Source: apps.apple.com · checked Nov 11, 2026
Natural Cycles privacy: what the company says about your data
Taken from Natural Cycles's own published pages, with the exact passage each line rests on. This is a summary of what the company states, not an audit of what it does.
- Selling personal data
Says it does not sell personal data for money.
The policy adds that sharing with advertising partners may count as a "Sale" under some US privacy laws, and that fertility, period and symptom data is not sold or shared.
“Please note that we do not sell Personal Information in the traditional sense of the word, for monetary consideration.”
Source: naturalcycles.com · checked Nov 11, 2026
- Advertising
Says some data is used or shared for advertising.
US Privacy Notice Addendum. Policy says fertility, period, sexual activity, symptom and pregnancy data are not sold or shared.
“we may disclose to our advertising partners identifiers and metadata (such as commercial information concerning interest in Natural Cycles, geolocation data, and internet or other similar network activity) for targeted advertising”
Source: naturalcycles.com · checked Nov 11, 2026
- Where your data is kept
Your data is stored on the company's servers.
“All information you provide to us is transferred using TLS encryption (HTTPS) and stored on secure servers.”
Source: naturalcycles.com · checked Nov 11, 2026
- Deleting your data
You can ask the company to delete your data.
Rights listed in the policy include erasure of personal data; US requests also via a web form or support email.
“You may contact us in writing at any time to exercise your rights, preferably using the email address that is associated with your user account.”
Source: naturalcycles.com · checked Nov 11, 2026
See how every listed app answers these questions in our app privacy data, or put Natural Cycles side by side with another app in the app privacy checker.
Devices
- Apple Watch
Has an Apple Watch app.
US App Store compatibility section lists Apple Watch. The official site also lists Apple Watch as a temperature source.
“Apple Watch Requires watchOS 9.0 or later.”
Source: apps.apple.com · checked Nov 11, 2026
HerFound added this listing from public information. Facts aren't founder-confirmed yet. We don't publish ratings of our own; a star rating shown here is Apple's, linked to the App Store. Spotted something wrong? Tell us and we'll fix it. How HerFound compiles listings.
Natural Cycles: common questions
There is no free version. The paid plan is listed at $21.99/month or $149.00/year (Natural Cycles subscription, US App Store In-App Purchases). Source: apps.apple.com, checked Nov 11, 2026.
Natural Cycles says it does not sell personal data for money. The policy adds that sharing with advertising partners may count as a "Sale" under some US privacy laws, and that fertility, period and symptom data is not sold or shared. On advertising, it says some data is used or shared for advertising. Source: naturalcycles.com, checked Nov 11, 2026.
Your data is stored on the company's servers. Source: naturalcycles.com, checked Nov 11, 2026.
You can ask the company to delete your data. Source: naturalcycles.com, checked Nov 11, 2026.
Natural Cycles is available on iOS and Android. It also has an Apple Watch app.