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Natural Cycles: Birth Control

Natural Cycles helps you keep track of your ovulation, period and fertility. The app will show you when to use protection to effectively prevent a pregnancy. It is clinically tested to be 99.5% effective*.
Category Price Seller Device
Health & Fitness Free NaturalCycles Nordic AB iPhone, iPad, iPod

*Natural Cycles has a method failure Pearl Index of 0.5, which means that 5 women out of 1000 get pregnant during one year due to a falsely attributed green day. Natural Cycles has a typical-use Pearl Index of 7.0, which means that in total 7 women out of 100 get pregnant during one year due to all possible reasons (e.g. having unprotected sex on red days, failure of the contraceptive method used on red days).

Natural Cycles analyses your temperature, period and ovulation to calculate when you are fertile and should use birth control (e.g. condoms). Our algorithm is the brains behind the app. It takes care of all the complex calculations and tells you everything you need to know about your cycle.

How it works:

Measure your temperature first thing in the morning before you get out of bed. You will need a two decimal basal thermometer to do so. Enter your measurement and other data such as period, sex and LH test results into the app. A green day means you are not fertile. A red day means that you are likely to be fertile and you should use protection.

Make sure to read the instructions of use before you get started. For the app to effectively work as a birth control, you should be comfortable with using protection such as condoms on red days.

In the beginning, the app will be getting to know your unique cycle, so you will have more red days - this is to ensure effectiveness. Once you’ve measured for a while you can get as little as 8 red days in one cycle.

Natural Cycles does not protect against sexually transmitted diseases (STDs).

Planning a pregnancy:

Natural Cycles goes beyond birth control. Our ‘Plan a pregnancy’ mode lets you know when you are most fertile and time your sex to increase your chances of conceiving.

The app will let you know when it’s best to take a pregnancy test. Once a positive test is entered into the app, it switches colours and your features change. You will now be able to track the development of your pregnancy. You can easily switch back to "Prevent".


KEY FEATURES

- Red and green days to tell you exactly when you should use protection.
- Ovulation calculator and detector
- Intuitive data entry – temperature, ovulation test results, period
- Interactive calendar showing your current and upcoming fertility status
- Personalised fertility predictions up to 5 cycles in advance
- Informative graph view
- Statistics from your cycles and fertility
- Integration with Apple Health app

‘Plan a pregnancy’ mode:
- Personal fertility scale to pinpoint the optimal days to conceive
- Pregnancy detector
- Information about your baby’s development

SUBSCRIPTION

Natural Cycles includes In App purchases for the auto-renewable subscription to the application. After a free trial, the user can choose to pay a monthly fee of 8.99 USD or a yearly fee of 64.99 USD. If the users chooses to pay for a year directly, before the end of the free trial, a basal thermometer is included in the price. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. The account will then be charged for renewal within 24-hours prior to the end of the current period at the price described above. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. No cancellation of the current subscription is allowed during active subscription period.

Our Privacy Policy and Terms of Use can be viewed here:

https://www.naturalcycles.com/en/disclaimer
https://www.naturalcycles.com/en/privacy

Natural Cycles is only certified for contraception in Europe. In the US, Natural Cycles is intended to be used for fertility monitoring.

Reviews

So thankful for Natural Cycles
MountainValor

Prior to getting married I tried going on oral contraceptives which made me feel absolutely miserable! I had already felt a little hesitant with adding hormones to my body. After further research regarding oral contraceptives, I came to the conclusion it wasn’t for me. I heard from a friend about Natural Cycles & the way it transformed her natural family planning! She has had great success in it. I got married in September 18’ & have been using this app for 10 months. I LOVE it. It’s been super user friendly - the hardest adjustment initially was getting used to taking my temperature regularly. However, the notifications did help with that. It’s actually been super fun to feel more aquatinted with my body’s rhythms. My husband also feels like he can study me & know my body better as well which has been great. When I’m approaching my period, he’s prepared for my freak-out PMS. Our goal being newly weds has primarily been to prevent pregnancy. Having not used any other form of protection (except for pull-out on red days) the last 10 months, I can say confidently this APP has worked successfully for us!!!


Revolutionary!!
existential_millenial_hanna

I love this app. I value living as much as a natural life, free from medications and hormones as possible. Like many women, I am concerned about the short and long term effects that birth control would have on my body, and possibly my future children’s development. So, This app has given me peace of mind about me and my partner’s sex life, and also the freedom to say “no” to hormonal birth control. I love all the educational material that this app provides for women to understand our bodies’ natural processes, rather than relying on a Doctor to use meds or hormones to interrupt our natural rhythms. I’ve used it for preventing pregnancy for over a year, and it works well. The app has helped me get to know my body more, and I can honestly say this has helped our relationship too. Admittedly, It has been a struggle to stay in the habit of measuring my temp every morning with lots of changes happening in my life. I am trying to get back on track now, but it still predicts my period and ovulation very accurately & is usually only off by a day or two. I highly recommend. Also, I showed my PCP doctor this app, and she loved it, and said she’d recommend to other female patients!


Easy, interesting, accurate
mauigirlfriend

Easy to use. Fun and fascinating to track. I feel more in touch with my cycle than I thought possible.


The Perfect Way yo Plan/Prevent Pregnancy Naurally!!
TheOriginalKB

I love his app! I love the way they send you messages with fun quizzes, info or updates on your data. I enjoy the aesthetic and layout of the month, day and graph views. I found this app to be EXTEMELY accurate in preventing pregnancy and just as accurate in helping us plan our pregnancy! I love all of the information they provide. With other apps you take your temp and you’re on your own to interpret the data but with Natural Cycles they provide all of the information you need to know your body better than any one else!! Could not recommend this app more!


From a seasoned Natural Family Planner...
Edmistica

This app is great! I have been taking my temperature for seven years. I recently started using this app to keep track of my temperatures and I LOVE it. It is well worth the full version. I’m on my eighth cycle using this app and am still going strong! My husband and I only use the green days. I have about 18 usable days per cycle, which is plenty for me! I only wish that it wasn’t so expensive to continue to use. $80 for a years subscription is pretty steep, and becoming a Star Cycler is not easy. The price may end up being the reason I have to stop using it eventually.


Unreliable
kate_ikins

About to go through my third thermometer. After 3 months each has stopped working and I’ve had to send in for a new one. Meaning the entire cycle before was tracked wrong and half of the next cycle can’t be tracked while I wait on a new thermometer.


Highly recommend!!!!
aliceamc

Not only has this app freed me of hormonal birth control, but I have learned SO MUCH about my personal cycle and how it effects my everyday life. The data this app allows me to interact with has improved my self awareness and overall well being!! Couldn’t be happier, feel so fortunate that this is an option for women. Yes yes yes.


Great For Any Woman!!
Nickname1287

I absolutely love this app! I was on birth control for about 9 years and then decided to come off 7 years ago but was never able to track my cycle. The Natural Cycles app has given me so much information about my cycle and when potential ovulation will be. What I love about it is that you can make the transition from preventing a pregnancy to planning for one and if you’ve been consistent in measuring and tracking your period you have so much information already! They also give helpful messages that educate you about your period and ovulation. I’m so happy my boyfriend and I decided to use this approach, I have not been disappointed and would recommend this to any woman whether she’s in a relationship or not!


I love it!
ashdrade

I am 26 and I am extremely sensitive to hormonal birth control pills. I’ve tried the non-hormonal IUD and I also hated it. This is such a fun way to track my cycles and allow my body to do what it is supposed to do without all of the side effects that come along with hormonal bc pills. If you follow the app exactly it is very effective! As a woman it is nice being more in tune with my body! 5 stars!


Birth control review :)
lz990

Worked so far ! This type of birth control is great for people who can remember to take their temperature everyday but if you are not one of those people it will be very difficult. I used to take the pill everyday so now I just take my temperature everyday instead. This is great for me because I already had the routine. If you are not getting Green Day’s don’t worry they will come ! It took me about 3-4 months to start getting semi regular again after taking conventional birth control. I stopped getting my period completely because of the pill for about 4-5 months so it took a little bit for my body to adjust off all the hormones. Takes some patience but my body feels SO MUCH BETTER being off hormones.