Natural Cycles, Fertility app

Natural Cycles, Fertility app

By NaturalCycles Nordic AB

Score: 5
From 1,983 Ratings


For US customers only: Natural Cycles is only certified for birth control in Europe. In the US, Natural Cycles is intended to be used for fertility monitoring. Natural Cycles is the only certified birth control app in Europe and so much more. It's the app that gives you the knowledge to get to know your body and truly understand how your cycle works. Backed by clinical research it has been shown to be 99% effective in perfect use and 93% effective in typical use.* The app is subscription based, see below for pricing plan details. More than 700.000 women are using Natural Cycles, join them and get to know: ○ How your unique cycle works ○ When you are not fertile ○ When your period is coming up and you can expect PMS ○ When your ovulation is detected and predicted ○ When you are at risk of getting pregnant and need to use protection (e.g. condoms) More great things about Natural Cycles: ○ The only certified app for contraception in Europe ○ Backed by clinical research ○ Teaches you the science behind your menstrual cycle along the way Natural Cycles Pricing Plans: To use the app you will need a two-decimal basal thermometer. Go ahead and sign up for our annual subscription for 79.99USD and we will ship a thermometer right to your doorstep free of charge. With this plan you will be charged in full, once per year. Sign up to our Monthly subscription and pay 9.99USD on a monthly basis. You can also try out our Free trial version for one month. Both of these options do not include the Natural Cycles thermometer. Precautions: ○ You must be over 18 years old to use Natural Cycles ○ Natural Cycles does not protect against sexually transmitted infections (STIs) in any way. ○ Natural Cycles informs you whether and when you can become pregnant. Abstention or protection (e.g. condoms) are required on red days to prevent pregnancies. ○ As a birth control, Natural Cycles may be less suitable if you experience irregular menstrual cycles as predicting your fertile days becomes more difficult and you will get an increased number of red days. For birth control, it is ideally used by women with fairly regular and ovulatory menstrual cycles. Want to learn more about Natural Cycles? Visit: ► ► ► To use Natural Cycles, you need to understand English or one of the supported languages. * E. Berglund Scherwitzl et al. Perfect-use and typical-use Pearl Index of a contraceptive mobile app. Read more here:



  • If you hate birth control this is your solution

    By ArOd81282
    Love love love NC 💕💕
  • Love this method!

    By Lizzieflegs
    I was on hormonal birth control for over 5 years and I hated it! I was afraid to try a natural route on my own and this app provided the perfect helper! So worth the money and I love it! Great alternative to the cons of other birth controls!
  • User-friendly great app

    By Lunitapporto
    It has helped me to understand my cycles better! It is easy to use and very intuitive I haven’t got pregnant yet but I am sure this app would help me to do it!!
  • Why didn’t I try this sooner?

    By JeCh16
    I’m 26 and have been using natural cycles as birth control for about 4 months. I never had a great experience with hormonal birth control and wanted to stop taking it... in comes Natural Cycles to save the day! It’s super easy. I do wish it included a place to log cycle symptoms like days I get zits and days I have mad cravings( I have another app to track those - they’re like clockwork each month) In summary, I love the control I feel I have over my body now that I’m using natural cycles. No more subjecting my body to hormones I know little about.
  • Better than birth control <3 Thank YOU!

    By Queen Mahhh
    I love this app. I'm Married and planning Pregnancy in the next 3 years, Natural Cycles gives me control over my body and hormonal cycle. It's great for people who can trust their partner and don't need to worry about STDs. Otherwise people should stick to Condoms ;)
  • Super easy to use and so informative

    By Ame132
    I’m only on my first month using the app but I love it so far. Easy and informative. And green days are really great ;-)
  • Good way to learn more about your body!

    By Mihfdrthvdhn12345
    I got this app after being on birth control for many years. It’s amazing how much I didn’t know about my body or about women’s reproductive health in general, and I’m educated! They just don’t teach you this stuff in school. Natural Cycles is a great way to see what goes on with your cycle, and can help women see if there are any abnormalities. The algorithm is surprisingly accurate and I don’t find temping a nuisance. The one criticism that I have is that the app doesn’t ask you to log your cervical fluid to corroborate the temps and show that you indeed ovulated when your temps show you did. Cervical fluid is the number one indicator, more so than even temps because it shows the fertile window without much margin of error such as a high temp due to a bad night of sleep, for example. This secondary sign is quick and easy to check and I think it should be one of the optional questions like the option to check LH. As accurate as the algorithm is, how can it be completely accurate for a woman that chooses not to check LH and there is no question about her cervical fluid? I think the LH check should not be optional, there are very inexpensive test strips available and every app user should be checking LH when the app recommends. There have been many times that my LH results moved my ovulation prediction up or back. Accurately pin pointing ovulation is critical for both pregnancy achievement and avoidance. Overall it’s a good app and I’ll keep using it. I think that every woman should try this even if they ultimately go back on hormonal birth control. I personally don’t think I’ll ever go back on hormones. Give it a try! You can cancel if it’s not for you.
  • Works great as non-hormonal birth control

    By absbach
    I’ve been using Natural Cycles since the beginning of this year and have loved it!! I was so so thankful to find something that could function as birth control without messing up my hormone levels!! NC has been amazing!!
  • So helpful and accurate!

    By ShiaBob
    I’m familiar with basal temperature for cycle tracking and tried to do it on paper for a while, but eventually gave up because I wasn’t quite sure if I had marked/tracked everything correctly. This app is a godsend! Accurate predictions the more you use it, and an easy way to mark your symptoms and whether or not you’ve had sex. I’m getting married in a few weeks and I’m really glad I started doing this as an alternative to hormonal/permanent birth control. It’s really easy to use so if you’re thinking of taking the plunge, it’s so worth it!!
  • This app is awesome!

    By Hayley Rose Tesfaye
    I’m really happy with Natural Cycles. I have a pretty irregular sleep schedule which makes it hard to get in as many temperature readings as I’d like to, but in just 3 months I have still managed to become a “junior cycler” which means the app has successfully predicted my ovulation cycle and now I have more Green Days! Thanks for making this app it’s so cool!