FertileFacts™ is your top source for fertility information in 2024

Our Natural Cycles vs. Daysy vs. Ava

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FertileFacts™ is your top source for fertility information in 2024

Our Natural Cycles vs. Daysy vs. Ava

This post may contain affiliate links. As an affiliate, we earn from qualifying purchases.

Which Fertility Tracking App is Right For You?

Posted on January 9, 2024

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Fertility Tracking basics

Fertility Apps Can Help Track Fertility

The mobile revolution has extended to many parts of our life, and is just starting to dramatically improve pregnancy and fertility outcomes. Fertility apps now enable women to pinpoint the best time to conceive, track cycles, and beyond. These new apps are arriving at the same time that attitudes towards openly discussing fertility among women and between partners are changing. Right now, new providers such as Ava, Daysy, and Natural Cycle are the leading fertility apps, and leading this mobile app and data-driven revolution.

As usage of these apps climb, it’s also becoming clear that people are interested in using these apps for different purposes. These apps can not only help couples get pregnant, but also help them avoid getting pregnant. One major advantage of using these new apps is the cost and time savings. Previously, women had to rely on expensive in person visits to get this same information. Now, women can do everything with the touch of a few buttons, which is exactly what we like!

Are you interested in learning more about tracking fertility using these apps? We’ll do an indepth comparison between Natural Cycles vs Daysy vs Ava in this article so you can find which app is the best one for your needs. 

Studies show that 60% of women are using these apps to avoid pregnancy, while others may simply want to understand their bodies and cycles better.  

How effective is fertility tracking?

Fertility tracking has become more and more effective with the ability of apps and computers to ingest and digest (can computers digest?) information. Newer apps like Natural Cycles, Daysy, and Ava are very accurate according to their creators, and use technology to learn and adapt to individuals’ changes.

What is fertility tracking? Fertility tracking is used to determine when a fertility window opens, by tracking ovluations to find the optimal time to get pregnant. With sufficient use, apps like Natural Cycles, Daysy, and Ava can use data provided to them in order predict when the optimal time to get pregnant (or avoid getting pregnant) is. In 2017, a study for Natural Cycles, found that “the efficacy of a contraceptive mobile application is higher than usually reported for traditional fertility awareness-based methods.”

The main methods used by fertility apps include three different methods:

  1. Daily oral basal body temperature to identify ovulation
  2. Cervical fluid consistency
  3. Urinary LH levels

What is basal body temperature?

Basal body temperature refers to your body’s temperature when it’s fully at rest. Your basal body temperature increases just after ovulation, so tracking it can help you identify which days you’re ovulating. This can, in turn, tell you which days you should have sex if you’re trying to conceive (or which days to abstain, if you’re trying to stay child-free). Most women’s basal body temperature is between 97 to 97.5 degrees Fahrenheit before ovulation; after ovulation, it typically ranges from 97.6 to 98.6 F. But other factors can impact basal body temperature, too

What is Cervical Fluid Consistency?

Cervical mucus (CM) is secreted by glands found in and around the cervix. Hormonal changes throughout a person’s reproductive cycle change the amount and consistency of this mucus. Cervical mucus may also be called cervical fluids or ovulation discharge. The job of cervical mucus is twofold. Most of the time, it prevents things, such as dirt, germs, or sperm, from entering the uterus through the cervix. However, around the time when ovulation occurs, it also aids in reproduction. CM nourishes and helps transport sperm through the cervix into the uterus to facilitate the potential fertilization of an egg.1 If the discharge is very watery and stretchy and resembles raw egg whites, you are likely to ovulate soon and optimal fertility.

What are Urinary LH Levels?

Hormone levels shift across your menstrual cycle to gear your body up for ovulation — including luteinizing hormone (LH), which is produced by the pituitary gland. At the onset of your menstrual period, your body has low levels of important reproductive hormones, such as LH, follicle-stimulating hormone (FSH), and the estrogen estradiol (E2). In the two-ish weeks after your period starts, the dominant follicle develops. It contains the egg that will eventually get released — and the follicle produces more and more E2 as it develops. Around 24-48 hours before the egg is released, there are large hormone surges of LH and FSH which will trigger the follicle to release an egg (read: ovulation).If there’s an LH surge, chances are pretty high that ovulation is coming, which is a fertile time!

Key differencesGet started
Natural CyclesChoose Natural Cycles if you want a budget-friendly option with all the features of other competing apps. They are also one of the leading apps working on a “completely anonymous experience”.One downside: you have to manually record your daily basal body temperature (BBT) into the app.Get started
DaysyChoose Daysy if you want an almost entirely error-free app. Daysy determines your fertility with a remarkable 99.4% accuracy. And, it automatically syncs with your smartphone app to give fertility statistics and reports.Get started
AvaNot thrilled by the idea of measuring your BBT right when you wake up before you can even go to the bathroom? We recommend Ava, a bracelet that you wear during your sleep, allowing it to collect data overnight.Ava is only for those looking to get pregnant and track their pregnancy progress. Ava is not for someone looking for a contraceptive device.Get started
Natural Cycles v Ava v Daisy Reviews Product Images Natural Cycles App Screen with Thermometer

Natural Cycles Basics

Is it worth it? We discuss

Natural Cycles was the first FDA-approved mobile app for understanding women’s fertility windows in order to help with birth control and pregnancy planning.

Like many ideas, the idea for Natural Cycles fulfilled a need that the cofounders had – to find an effective method of natural birth control that didn’t include the use of hormones. Co-Founders Elina and Raoul began to document Elina’s own temperature and together they created an algorithm that determined fertile days. Not only did the algorithm work for contraception, but it also helped them plan successful pregnancies. Since then Natural Cycles has been a leader in empowering women to learn more about their bodies.

How does Natural Cycles work?

Natural Cycles uses readings of basal body temperature to figure out what your fertility status is. You use the thermometer to read your temperature, and then you input the temperature into the app. The algorithm reads this information and calculates fertility windows. Natural Cycles can also use two other types of data to predict fertility: Cycle Length and Luterizing Hormone (LH)

Basal body temperature (BBT) is a method to detect ovulation. Basal body temperature is your temperature when you’re fully at rest. Ovulation causes a slight increase in basal body temperature. Based on this temperature, you’ll likely be most fertile during the two to three days before your temperature rises. By tracking your basal body temperature each day, you may be able to predict when you’ll ovulate. Natural Cycles uses a proprietary algorithm that measures basal body temperature over time, “learning the pattern of your unique cycle to work out daily fertility status” The algorithm doesn’t require that you measure BBT every day, but getting into a routine will help to allow the app and algorithm to understand your cycle better.

The other types of data that can be used by Natural Cycles include menstrual cycle length and Luteinizing hormone (LH). By reading fluctuations and irregularities of cycles, Natural Cycles can help forecast your fertility. The app can also recommend when to take an optional luteinizing hormone (LH) test. LH levels spike immediately before you ovulate. An LH test is performed by using a urine test strip, which may be purchased at your local drugstore or through the Natural Cycles app. Together the Natural Cycles app is a comprehensive way to determine fertility.

Using clear colors (green or red), the Natural Cycles app tells you whether you are fertile (red) or not fertile (green). Therefore the color scheme gives you the traditionally “good-to-go” color (green) when you’re not fertile. In this way, Natural Cycles is designed for the couple trying to avoid pregnancy. However, if you’re trying to conceive, you should look for red, which in this case is the color…of baby?

How much does Natural Cycles Cost?

Natural Cycles is billed on a subscription basis, either monthly or annually. If you choose an annual subscription you receive a basal thermometer. If you choose the monthly subscription, the thermometer must be purchased.

There are two subscription plans available for Natural Cycles app. The current prices are: 

  • Annual: $89.99 (includes the thermometer)
  • Monthly: $9.99 (thermometer at an additional cost)

 

But check here for the latest prices. If you want to test Natural Cycles before paying for the service, you may try it out in a free demo mode by installing the app.

How do you use Natural Cycles?

Step 1: Download the App 

https://apps.apple.com/us/app/natural-cycles-birth-control/id765535549

https://play.google.com/store/apps/details?id=com.naturalcycles.cordova&hl=en_US&gl=US

Step 2: Choose your plan

Natural Cycles offer various plans that can help you meet your long-term goals:

  • NC Birth Control (preventing pregnancy)
  • NC Plan Pregnancy (finding fertile days)
  • NC Follow Pregnancy (monitoring pregnancy)

Step 3: Buy a Basal Thermometer (or skip this step if you sign up for the annual plan, they will send you one!).

Basal thermometers are more sensitive than regular fever thermometers, as they show two decimals (which is significant, by the way!). 

Step 4: Setup the App and begin temperature readings.

Temperature readings must be taken first thing in the morning, before you start moving for the day. This means, you guessed it, when you’re still in bed even before you can use the bathroom! It’s recommended to forgo taking your temperature on days when you are feeling sick and assume your temperature has risen due to illness. 

Step 5: Enter your temperature into the Natural Cycles App.

You’ll enter your morning basal temperature into the app, along with some data about your cycle to track symptoms and learn more about your unique menstrual cycle. For example, there’s space for you to add information about any PMS, pain, sex drive, or mood changes. You can use those symptoms and a graph feature to see patterns. 

Is Natural Cycles FDA approved?

Yes! Natural Cycles was approved by the FDA as the first app-based birth control in 2018. 

https://www.fda.gov/news-events/press-announcements/fda-allows-marketing-first-direct-consumer-app-contraceptive-use-prevent-pregnancy

Is Natural Cycles covered by insurance?

Natural Cycles is not currently covered by insurance but can be purchased with FSA or HSA.

How accurate is Natural Cycles?

According to their website: “Natural Cycles is 93% effective with typical use, 98% effective with perfect use. 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.” No method of contraception is 100% effective. But because Natural Cycles if FDA approved, they are required to monitor this effectiveness rate on a regular basis, so we know this is legit.

When compared to birth control methods like hormonal birth control pills or IUDs, Natural Cycles is less effective, but it’s more effective than methods such as condoms or withdrawal with no other form of contraception. The main benefit of Natural Cycles is the non-hormonal aspect – if this is your goal, to refrain from using hormones to control cycles, Natural Cycles is a great way to better know your body and help to prevent (or aid!) pregnancy.

Natural Cycles Reviews

What customers are saying

Natural Cycles was the first FDA-approved mobile app for understanding women’s fertility windows in order to help with birth control and pregnancy planning.

Like many ideas, the idea for Natural Cycles fulfilled a need that the cofounders had – to find an effective method of natural birth control that didn’t include the use of hormones. Co-Founders Elina and Raoul began to document Elina’s own temperature and together they created an algorithm that determined fertile days. Not only did the algorithm work for contraception, but it also helped them plan successful pregnancies. Since then Natural Cycles has been a leader in empowering women to learn more about their bodies.

"6 cycles and I still love it!
I have been using Natural Cycles for 6 months now, and it was the best decision | ever made. I learned more about my body and what a menstrual cycle really is, including all the phases. It is so easy to use and keeps me in tune with my body. The best part is that I am off of a birth control pill, and my body can go through its cycles completely naturally!" - Heidi Meyer

Bria Keffer

Trust Pilot

I've only been using the app for about a month but so far I love the look of the app, all the features, navigation, and the educational material. I'm in my 30's & didn't know half of the information they teach you about! Con: the only one so far, is the thermometer. When I wake up in a darkish room, the thermometer is hard to read. It doesn't light up or automatically update the app with your temp. If they could update this, it would change I would have zero negative feedback!" - Geovanny Martinez

Hope Beaver

Google Play Store

"LIFE CHANGING I have been on hormonal birth control for 8 years consecutively. I was 18 years old when I first started and although my periods became more regular and I felt more at ease by preventing unwanted pregnancies, I discovered many reasons why the birth control pill is NOT good for my body. I suffer from hypothyroidism, I was diagnosed at age 11. My periods were never regular and when I began taking the birth control pill, I felt like all my issues were "gone." It took me 8 years to discover that I do not NEED a synthetic hormone in my body. I stopped birth control 3 months ago and have used this app along with my basal body thermometer each morning to track my temperature. The app does ALL of the work for me! I have NEVER had regular periods in my life! (Except while being on the birth control pill) I have had 3 menstrual cycles since stopping birth control. All of which were predicted by the app. I now know when I'm ovulating! It's such a great way to prevent and plan pregnancies!! I highly recommend this method if you are looking for a natural, inexpensive, and safe method of birth control. I will never go back to using the hormonal pill! You will learn so much about your body and feel AMAZING." - A lison Fabian

Chanel Marie

Apple App Store

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