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Best Fertility Tracker 2024: Comprehensive Comparison of Apps and Monitors

Fertility tracking apps and monitors can assist you in learning more about your menstrual cycle and determine when you are ovulating, helping you catch the best chance for conceiving. Besides the typical use of fertility trackers to understand menstrual cycles, women may also use them to prevent pregnancy.

Each product is different, offering unique features and accuracy. Here, we’re reviewing our choice of the best fertility tracker apps and monitors that were evaluated by the Healthnews research team.

Feel free to explore further to find the one that best aligns with your needs.

Best fertility tracker 2024: shortlist

  1. Flo — overall best fertility tracker app in 2024
  2. Glow — best family planning app
  3. Femometer — best fertility tracker device + app
  4. Mira — best ovulation tracker kit
  5. Natural Cycles — best fertility app for birth control
  6. Inito — best fertility monitor
  7. kegg — best cervical mucus tracker

How we compiled the list of best fertility trackers

We meticulously assess certain quality aspects to ensure our list of the best fertility trackers comes as user-friendly, secure, inclusive, and cost-effective options with maximum accuracy.

User experienceEase of use
AccuracyMaximum prediction precision
SafetySecure user data
AccessibilityDevice integration
PriceValue for money
  • User experience. We read customer feedback across various review platforms to understand the ease of use and intuitiveness of the fertility tracker apps and monitors on our list.
  • Accuracy. Considering that tracker apps base their predictions on the data you provide, we listed the top-rated fertility apps for their maximum predictive accuracy. For monitors and tests, accurately detecting certain hormone levels is a primary aspect to consider.
  • Safety. User safety was a paramount aspect we considered when selecting the best fertility trackers to ensure safe usage and secure storage of sensitive data.
  • Accessibility. We considered trackers compatible with iOS and Android, as well as allowing device integration, such as smartwatches or rings, basal body temperature (BBT) thermometers, and others.
  • Price. Evaluating the affordability of fertility trackers, we analyzed the prices of subscriptions, the free version availability of the apps, and the cost of one-time purchases for devices and monitors.

Best fertility tracker of 2024: overview

The following section is dedicated to the best fertility app and monitor reviews based on the quality aspects discussed above. Moreover, we have assessed different features of each product, highlighting their pros and cons and specific intended use.

We also evaluated the products offering a unique approach to assisting women in their trying to conceive (TTC) journey. Additionally, we’ve explored the effectiveness of the trackers for contraception purposes.

Abbreviations and their meaning:

TTC Trying to conceive
BBTBasal body temperature
LH test Luteinizing hormone (ovulation) test
hCG testHuman chorionic gonadotropin (pregnancy) test
PdG testProgesterone test
E3G test Estrogen test
FSH testFollicle-stimulating hormone test
PCOS Polycystic ovary syndrome
HSA/FSAHealth savings accounts/Flexible spending accounts
OB-GYN/RE Obstetrician-gynecologist, reproductive endocrinologist

1. Flo — overall best fertility tracker app in 2024

Flo Health app

Flo is the most downloaded fertility tracker app globally, trusted by over 100 million users on iOS and Android. This is also one of the best free apps when trying to conceive while offering support to women with such health concerns as hormonal imbalance, irregular cycles, PCOS, or endometriosis.

For individuals seeking a minimalistic and easy-to-use app for fertility tracking, Flo provides an ideal option. After downloading the app and inputting essential information, you'll find yourself on a screen visualizing where you are in your cycle.

You can use Flo for general fertility tracking by choosing one of these 3 aim modes:

  • Track cycle
  • Get pregnant
  • Track pregnancy

The application allows you to input data on your daily and PMS symptoms regarding mood, physio-psychological well-being, and other factors. Using this information and your cycle length, the application predicts the fertility window and peak ovulation day for the best chance for conception.

The app enables you to share your cycle data with your partner to stay on the same page when planning a family. You can find TTC support and discuss all things fertility under the in-app “Secret chat.”

While these features are fully available with the free version of the app, the premium subscription allows more data collection and provides a more personalized translation of your logs. The Flo app for fertility tracking is available at the following price and subscription plans:

  • Monthly — $11.49
  • Annually — $39.99

2. Glow — best family planning and fertility tracking app

Glow Premium app

Glow may be the best TTC app for couples planning a family, providing all the necessary features from symptom collection, cycle tracking for the peak conceiving day, and LH test results reading.

Glow allows BBT monitoring and inputting information about cervical mucus and cervical position, offering additional features that enhance accuracy with prolonged use. Collecting all this data, the application provides a chart displaying the tendencies during your previous cycles for a better image of your reproductive well-being.

According to the customer reviews on Google Play and Apple Store, this application is one of the best in accurately detecting fertile windows and offering professional tips and tricks for successful conception.

Most of the necessary features in the app are available with the free version. Yet, with the Premium subscription, you will get more information and enjoy an ad-free experience. Here are the plans and subscription pricing:

  • Annually — $59.99 ($4.99/month)
  • Monthly — $15.99 month
  • Lifetime — $99.99 charged once + access to Glow Premium across 4 Glow apps (Baby, Nurture, Glow, Eve)

3. Femometer — best fertility tracker device + app

Femometer smart ring and app + logo

Day-to-day fertility tracking can be an exhausting and time-consuming process. For women seeking a convenient tracker beyond ovulation tests and BBT thermometers, Femometer introduces Smart Ring — one of the original and best fertility tracker monitors compatible with the companion app Femometer.

Femometer Smart Ring offers seamless reproductive health monitoring, measuring your BBT to predict upcoming ovulation and period days, as well as sleep patterns while worn overnight. Upon waking up, you can obtain the data on your Femometer app in a few seconds.

For someone who appreciates a minimalistic design, Femometer’s Smart Ring is the perfect suit with wear-resistant, non-fading oxidized, and white porcelain. It is available in 4 sizes — 6, 7, 8, and 9.

You can wash your hands freely with the ring, thanks to its IP68 waterproof rating. Charge fully in 30–60 mins, and enjoy up to 7 days of battery life.

Note that the Femometer Smart Ring costs $149 and is paired with the brand’s homonymous app only. With this integral usage, the latter becomes one of the best fertility tracker apps for free.

4. Mira — best ovulation tracker kit + app

Mira Starter Kit

Mira is the first-of-its-kind fertility tracker kit reported to help hundreds of women worldwide on their TTC or contraception journey. The Starter Kit, including the Mira Analyzer and 20 test wands, emerges as the best ovulation tracker — detecting the accurate LH surges 1–1,5 days before ovulation.

If you need clarification about which test, LH or E3G, should be used on specific days, the Mira app will help you by showing the required information on the cycle wheel on the main screen. Use the test wands to get numeric detection of the necessary fertility hormones — FSH, E3G, LH, and PdG.

While you can use the Mira app with limited features, the fertility monitor should be paired with the application through Bluetooth to provide precise readings of hormonal fluctuations over the cycle.

The Mira fertility monitor is priced at $179, with additional test wands available for separate purchase. It's HSA/FSA qualified, making the cost eligible for health savings and flexible spending accounts.

5. Natural Cycles — best fertility app for birth control

Natural Cycles app

Designed by a Swedish scientist, Elina Berglund, to track her fertility, Natural Cycles (NC°) became one of the renowned apps for birth control. Yet, for some women, it is still the best app to get pregnant.

As claimed to be the only FDA-cleared application, NC° is trusted by thousands instead of standard contraception methods. The app works by monitoring your BBT using the brand's thermometer, which is connected to the app via Bluetooth.

Additionally, the app allows device integration for the Apple Watch and Oura ring to collect data for maximum prediction precision. Note that you need to obtain any of these devices to access the app.

Although the NC° app was originally designed as a digital contraception, you can use it for general cycle tracking and pregnancy planning. After successful conception, you can use the app to follow your pregnancy.

Natural Cycles is FSA/HSA qualified and offers 2 subscription options:

  • Annually: $9.99/month + free thermometer
  • Monthly: $14.99/month

6. Inito — best fertility monitor for hormone measuring

Inito Fertility Monitor

Inito by Glow is yet another top-rated fertility monitor in the FemTech market. The device uses only one test stripe to detect the levels of 4 fertility hormones — LH, E3G, PdG, and FSH.

It's important to mention that the Inito monitor is currently compatible with iPhone 7 and newer models. After inserting the test strip into the monitor, you can attach it to the phone for the camera to read the tests and provide numeric values of the above-mentioned hormones.

According to the provider, you will get a fertility window prediction 6 days before the day of your actual ovulation. What’s more, the customers report high accuracy, and some women share their success stories while at TTC.

Yet, customer reviews and app data are not 100% accurate. Hence, talk to your OB-GYN for more professional guidance.

The Inito monitor comes with 15 test stripes, an iPhone attachment clip, and a free app for $149.

7. kegg — best monitor tracking fertility with cervical mucus

Cervical mucus (CM) changes throughout your menstrual cycle, reflecting the hormonal fluctuations and indicating fertile and non-fertile days. For women, seeking means to simplify the process of interpreting these changes, kegg offers an intuitive solution.

This is a compact fertility tracking device measuring electrolyte levels in the CM utilizing impedance technology to aid in catching ovulation for successful conception. Simply, download the kegg app, scan the barcode of your device and start monitoring your fertility by following these steps:

  1. Put the device into the vagina once daily
  2. Wait for 2 vibrations indicating that results are ready
  3. Keep the device close to your phone
  4. Receive the results on the cycle wheel on your app

Remember that kegg is not suitable for pregnant, postpartum, or breastfeeding women, those who have a pelvic floor dysfunction, or use vaginal creams, medications, or ointments.

The package contains a kegg fertility tracker ball, charger, and user instruction and costs $269. The app is free without subscriptions required.

Comparison of the best fertility trackers

Having reviewed both the best fertility tracker apps and devices, we can compare these products in separate tables for better clarity.

Best fertility tracker device: comparison

BrandPriceDevice typeFSA/HSA eligibleApp integrationCompatibilityReadingsSuitable for irregular cycles/PCOSTest stripes
Femometer$149Smart ringNoYesAndroid and iOSBBT and sleep trackingYesNo
Mira$179Test analyzer/fertility monitorYesYesAndroid (5.0 and up) and iOS (10.0 and up)LH, E3G, PdG, FSHYesYes (LH and E3G)
Inito$149Test analyzer/fertility monitorYesYesiOS onlyLH, E3G, PdG, FSHYesYes (single test stripe for LH, E3G, FSH, and PdG)
kegg$269CM tracker and Kegel ballYesYesAndroid and iOSDetecting electrolyte levels in the cervical mucusYesNo

Inito vs. Mira vs. kegg

Number of test wands10 (LH and E3G)15 (1 stripe for 4 hormones)N/A
Testing methodDip to urine Dip to urineCervical mucus
Reading methodLab-grade fluorescence-basedPhone cameraSensing technology
CompatibilityiOS and AndroidiOS only iOS and Android

With Mira, users can simply connect to the app via Bluetooth and see the test results on the screen. In contrast, Inito involves a more cautious testing process, including inserting the test into the monitor and attaching it to the phone camera for reading.

Best fertility tracker app: comparison

BrandCostDevice compatibilityIntended useApp ratingTest readings
FloMonthly: $11.49
Annually: $39.99
FitBitPeriod, ovulation, pregnancy, and reproductive health tracking Android — 4.6
iOS — 4.8
GlowAnnually: $59.99
Quarterly: $29.99/3 months
Lifetime: $99.99

Oura ringPeriod tracking, pregnancy planning, and trackingAndroid — 4.3
iOS — 4.7
Natural CyclesAnnually: $9.99/month + free thermometer
Monthly: $14.99/month

Thermometer, Oura ring, Apple smartwatchBirth control, planning, and following pregnancyAndroid — 4.6
iOS — 4.8

Fertility tracking: why is it essential?

Fertility tracking allows women to obtain insights regarding their reproductive health. It is essential to track fertility if you are trying to get pregnant and want to keep a close watch on your cycle to pinpoint the best time to attempt conception — that is, peak ovulation day.

For the most accurate fertility data, women should learn how to track their cycle and recognize fertility signs through the fertility awareness method. If you know what types of signs to look out for to predict fertility, you can use trackers simply to monitor data for your doctor to interpret them for you.

The success rate of using the fertility awareness method as birth control can be as high as 95–99% when done perfectly, meaning consistent and thorough tracking every day and correct interpretations, but studies have shown that the user's success rate could be lower than birth control.

The main benefits of fertility trackers

There are several benefits of fertility trackers, including:

  • Period tracking
  • Facilitating or preventing pregnancy
  • Tracking irregularities
  • Analyzing premenstrual symptoms
  • Pregnancy tracking

Despite the increasing number of fertility tracking apps and monitors and TTC platforms providing anecdotal experiences, talk to your healthcare provider, especially if trying to prevent pregnancy or TTC.

Fertility tracker apps vs. monitors

Fertility tracker apps and monitors serve as valuable tools for monitoring menstrual cycles and predicting fertile days. Here are the main differences between apps and monitors for fertility tracking:

  • Accessibility. Apps are easily accessible on smartphones, while monitors are standalone devices.
  • Data input. Apps rely on user input for tracking cycle data, while monitors may offer more direct and precise measurement methods.
  • Features. Monitors often provide more comprehensive data, such as hormone levels, whereas apps may offer basic cycle-tracking features and predictions based on data input.
  • Cost. Apps are typically more affordable or provide free versions with essential features, while monitors may be highly priced and require an initial investment.

Experts do not recommend using fertility tracker apps on their own as a form of contraception. Condoms or other birth control methods are recommended in addition to the fertility awareness method if the goal is to prevent pregnancy.

What to consider when choosing a fertility tracker

Many fertility trackers monitor the same type of data, whether it’s temperature, specific hormones, or even cervical fluids. Determining the best tracker for users means evaluating the following aspects:


Fertility trackers can range in price from very affordable to pretty expensive. Be sure to keep your budget when choosing a fertility tracker.

Ease of use

Fertility trackers can vary widely in terms of how easy they are to use. Some require inputting a lot of data, while others are much simpler. Choose a fertility tracker that you will likely use consistently (as the manufacturer recommends).


It’s important to choose a tracker that is accurate in its predictions. Remember that fertility trackers are not 100% accurate, but you want one as accurate as possible.

Intuitive interface

Compare fertility tracker apps to select the one offering clear navigation, such as ease of fertility-related data input and information gathering.

When to see a doctor?

You should see a doctor, specifically a reproductive endocrinologist or OB-GYN if you are planning a family and experience the following difficulties:

  • Irregular cycles
  • Diagnosed or suspected health concerns
  • Fertility issues with the male partner
  • Hormonal imbalance
  • Recurrent miscarriages (chemical pregnancies)

For individuals above 35 years old, it's advisable to consult a doctor if pregnancy hasn't been achieved after six months of active TTC. For those below 35 years old, seeking medical advice is recommended after one year of unsuccessful attempts at conception.

Best fertility tracker app 2024: conclusion

In conclusion, fertility tracker apps and monitors can serve various purposes, including providing insights to help with conception or the opposite — preventing pregnancy. What’s more, seeking the best fertility tracker suitable for your needs requires a thorough consideration of safety, accuracy, intuitive design, and cost-effectiveness.

Nonetheless, it’s essential to take additional steps to enhance fertility and general reproductive health by talking to your OB-GYN and making healthy lifestyle changes.

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