Natural Cycles, Birth Control

Natural Cycles, Birth Control

By NaturalCycles Nordic AB

Score: 4.5
From 1,347 Ratings


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*. *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 9.99 USD or a yearly fee of 79.99 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: Natural Cycles is only certified for contraception in Europe. In the US, Natural Cycles is intended to be used for fertility monitoring.



  • Highly recommend!

    By jennabobenna0915
    I have never reviewed an app before, but I LOVE Natural Cycles! I was on hormonal birth control but I just couldn’t handle what it was doing to my body and emotions. Natural Cycles saved me and I just feel so grateful to live in a time that this option is available. As a plus, it has taught me so much about my body!
  • Great

    By REBECCA8493
    Love that I don't have to put another pill into my body... but be ready to have to use protection (a lot) the first few months as the app gets to know your cycle!
  • Best birth control!!

    By Ldv541320!
    I am 22. I have used the pill and the implant, but I was tired of the side effects. The pill almost cost me my relationship because of how bad my mood swings were. The implant was better, but I just didn’t like the fact that I had a little stick in my arm & the horror stories of it getting lost or getting an infection really scared me. I am so glad to be using natural cycles now!! I feel much better about my body, and I have learned a lot about my personal cycle even though I’ve only been using the app for 2 months. Better than high school Sex Ed lol. I am married now, so that definitely helped when choosing this app as a form of birth control. If I was a young girl not in a relationship & didn’t want to be pregnant, i would be hesitant to use this unless you have a lot of self control to not have sex on red days. At least use a condom if you do.
  • Best decision for my body

    By Asitzman
    Getting natural cycles and removing the birth control and all the unnatural hormones from my body is the best decision ever. I used to think being on BC and not having to think about my period or ovulation or getting pregnant was a good thing, but after many health issues caused by hormone levels and BC I realize now how healthy it is to be in tune with all of those things! And it works for family planning too! It even tells you when to stock up on condoms or chocolate! Like the best friend we wish Mother Nature would have been to us women! For now we use it to prevent pregnancy but if the day comes we could even use to plan for it.
  • Life changing

    By flowithmisslo
    I'm writing a blog review on this app it has changed my life and givenme confidence to get off birth control safetly. It's worth every penny.
  • Absolutely Life Changing

    By sam 🙈💕
    Natural Cycles has changed my life, and I will rave about it to anyone who will listen! I was on the pill for 10 years and didn’t know all the negative ways it was impacting my body. I was afraid of an iud aftering hearing many horror stories, and I felt discouraged and trapped with hormonal bc. I took a chance with Natural Cycles, and although my partner and I were nervous at the start, we’ve been blown away by the simplicity of the app, the formatting of the data, and overall accuracy of this method. Remembering to take my temp every morning is no more difficult than remembering to take the pill every night, and I feel like a fog has been lifted from my whole body. I’ve lost a few pounds (changing absolutely nothing in my life aside from the pill) and although my periods are a bit more painful they are now shorter in length. I feel more connected and in control of my body, and both happier and healthier than I have in a long time! 💃🏻💕
  • Love this app

    By Magdaaa123
    This app is excellent
  • Great app

    By Chien313
    It's so good to take control of your body and know what's happening.
  • Helpful information

    By kcnaparicio
    I have been using Natural Cycle for almost 3 months and I really like it. I’m learning so much about my cycle. I have been on birth control or an IUD for decades. I feel amazing to not have hormones in my body. By taking my temperature (when I remember- that the hardest part) and tracking, I’ve learned so much about my body’s natural rhythm.
  • Body knowledge

    By marcyxoxo
    I love learning about my body and knowing when I’m ovulating not JUST so I can avoid or have protected sex but also because after years on birth control, I got off it at 25 and my natural periods disappeared and I thought my days of ovulating normally were done. The doctor said my ovaries were sluggish. I had no concept of what my real natural body was supposed to be like, it made me depressed. 3 years later I got my periods back (3 years people)! And then I fell in love. But I knew I couldn’t return to birth control and how badly it had messed up my body, plus I had just gotten back to being my normal period self again. Natural cycles has been the perfect solution for me and it fits perfectly with my lifestyle, and when it sent me the message that my cycle was within the realm of average I wanted to cry tears of happiness. My only wish is for the thermometer to be an IoT device, a smart thermometer which sends the info directly to your phone. Maybe it’ll even have a soft alarm to remind you to take your temp one day. Just imagine! Either way I love this app and am so glad I have it. Thank you 💜