Top 10 Ovulation and Menstrual Calculator Apps You Need to Download

Keeping track of periods is not so easy. In fact, it has always been sort of a task. Yes, we all forget when our period is due. Personal or professional stress doesn’t help and we tend to not notice any irregularities in our cycles. Ovulation or Menstrual calculator apps can play a vital role here. You can openly discuss this on F95Zone communities. Here, we present a list of the top 10 such apps that can make it more simple for you and may even help you live healthier.

Top 10 Ovulation or Menstrual Calculator apps

1. Clue

Clue is rated as the top free menstrual calculator app by the journal Obstetrics and Gynecology, a publication of the American College of Obstetricians and Gynecologists (ACOG). It is one of the leading period trackers and ovulation apps. It claims to make accurate predictions about your period, PMS, ovulation, menstrual cycle, and fertility. It has a great feature that helps you analyse your current and past menstrual cycle and find your pattern. It tracks if there are any changes in this pattern and sends alerts.

The app helps to observe patterns in your health by tracking over 30 health categories including period flow, PMS, birth-conto. You put the information yourself so you have full control of your preferences. Everything from menstruation to birth control, mood, and sex habits can all be tracked and customized based on them.

The app does not just track your period but can also remind you when to expect PMS and tracks ovulation accurately. It also tracks fertility and therefore can tell the appropriate days for intercourse to plan a pregnancy.

The Clue app promises to give a scientific, sound, and straightforward experience. You are not going to find flying pink unicorns or flowers in your face when you use this app. It will tell you only the required information and facts.

2. Natural Cycles

Natural cycles is the first and only contraceptive app approved by FDA. This app claims to be 93% effective with typical use and 98% effective with perfect use.

This app works on the basis that there is a connection between body temperature and fertility. After ovulation, hormones cause a rise in basal body temperature and this can be detected. To measure this small, yet significant, rise in BBT you need a thermometer that shows 2 decimal places.

To use this app you need to measure your BBT first thing in the morning. This should be done at least 5 times a week. The recorded temperature and your period data need to be added to the app.

The Natural Cycles intelligent app uses an algorithm that analyses basal body temperature to tell you when you can or can’t get pregnant. The app tells the fertility status of every day by assigning the day as a green day or a red day.  A green day means you are not fertile and can’t get pregnant, a red day means you are fertile and there is a risk of pregnancy. On red days you should either use a contraceptive or abstain from having sex.

3. Flo

Rated number one menstrual tracker in the US by an active audience, this app is used by over 5 million people every day and is the most downloaded health app worldwide. This AI-based app can log over 30 symptoms and activities to get the most precise period and ovulation predictions.

It gives timely reminders to stay on track with your birth control and helps you prepare in advance with the help of your personal period calendar. It has a great feature of daily health insights where you can get numerous articles, quizzes, surveys, and interactive dialogues in your personal feed. The app is dynamic and the algorithm changes according to your changing lifestyle. Flo can also be a full-on pregnancy app as it has pregnancy and post-pregnancy modes as well.

If you’re too shy to ask anything, you can ask any question anonymously to a community of over 20 million women worldwide. Another great feature that can be added to the list is that it can gather data for graphs and smart health reports to share with your physician.

4. Period Tracker

The icon says P tracker to keep it discreet on your home screen. The interface may seem a bit complicated at first but once you understand it, you can have a detailed analysis of your monthly cycle.

All you need to do is click a button at the beginning of your period every month. The app will record your dates and calculate the average of your past 3 months’ menstrual cycles to predict the start date of your next period. The app has a simple month-view calendar where you can view your current and future period dates, ovulation and fertile days, your moods and your symptoms.

You can take daily notes of moods, symptoms, and intimacy. You can easily keep a track of days left before your next period starts or a number of days late. You can even share information with your partner and chat with them on the app.

The only annoying thing is the use of flowers to show the 8-day fertility window and ovulation period in case you’re trying to conceive. If you can look past that, it’s a great app to track your period, symptoms, intercourse, moods among other categories.

5. Glow

Winner of 2014 Webby for best Health & Fitness app, Glow is simple and free. It is a data-driven fertility & ovulation tracker powered by sophisticated data analysis to help you monitor and improve your reproductive health. The ovulation calculator prediction gets more accurate as you enter more data. It claims that couples who used this app are 40% more likely to get pregnant.

It has advanced features of community and partner support, and reminders for medications, birth control and/or other contraception. You sync your health profile including fertility data and ovulation days to the cloud. You can also sync with other apps like MyFitnessPal and Google Fit and sync your Apple Watch and Fitbit, focusing on overall health. It has partnered with leading fertility clinics such as Boston IVF, Shady Grove Fertility, and RMA NY. You can also get a Mirror app for your partner so both know the fertility status and complications.

It has a feature that can review past periods, and ovulation dates to better understand your fertility. Companion apps like Glow First and Glow nurture are there to help you guide through pregnancy as well. Thus glow provides a whole package of guidance from pre to post-pregnancy.

6. Fertility Friend

Fertility Friend is a real friend for you. It will answer all your questions regarding menstruation, ovulation, pregnancy, and sexual health in general. It has an easy-to-understand interface and uses color-coded charts that you can save and go back to any time you wish. It can familiarize you with your body’s internal biological patterns by tracking and recording your periods and fertility signifiers, like basal body temperature, symptoms, and cervical fluid.

It can quickly teach you how to track your fertility signs, show you what they mean, and display your ovulation and fertile days on a calendar and a fertility chart. If you are paranoid about the security of your information, the app also has an optional feature to add a short passcode to protect it. You can also enter and review data offline when you don’t have access to the internet.

Educational articles, videos, tutorials, quizzes, and eBooks are available here for free. It also has a unique feature of fertility chart interpretation games. If you want to have advanced data analysis tools to monitor your cycles, BBT  pattern, and fertility data you can go for the premium version by making few in-app purchases. There is also an integrated Pregnancy tracker that can guide you when you get pregnant.

Ergo, Fertility Friend can be your lifelong friend.

7. Kindara

Kindara app can help you in your personalized goals: whether you want to avoid pregnancy, get pregnant or understand your body better. It supports the Sympto-Thermal method and can be used for Natural Family Planning (NFP). It can predict your ovulation timing, fertile window and you can thus decide intercourse time to increase likelihood of pregnancy. It is based on the Fertility Awareness Method, which claims to be up to 99.6% effective when used correctly

You can gain insight into conditions like anovulation, PCOS, and hypothyroidism with the help of this app. You can add daily journal entries to keep track of moods, doctor visits, cervical changes, PMS symptoms, spotting, pregnancy tests, etc
. It also has a feature that lets you share your chart with your physician/gynecologist to encourage the best care for you
. You can even get support and feedback from fellow members of the Kindara community to help you interpret your fertility chart.

8. EVA

Now this one is not so famous. It is very recent and deserves more traction than it has received. Eva is the first talking period tracker with a sense of humor. It is developed by Microsoft and is available for both PC and mobile devices. It remembers your cycle so that you don’t have to. Track symptoms like BBT, mood, flow, fluids, spotting, and pain.

It can crack a joke or two when you are having mood swings. Though this part is still under construction, it provides moral support at the right time. it can alert you when your period or fertile window is coming so you can prepare yourself for the same.

Eva is just the start of long robot evolution, with hopes of going in the right direction.

9. MyFlo

You have got to appreciate the app from Flo Living. Created by Alisa Vitti, the MyFLO app tells you what phase of your menstrual cycle you’re in (based on ovulation), and familiarizes you with what to expect due to your hormonal changes. This feature takes it one step further than most apps. Symptom-free period seems like a dream to most of us but it can get closer to reality with this app. This app tells you how to deal and cope up with your symptoms. It teaches you to ‘read’ your period and know if your hormones are healthy.

From  PCOS, PMS to bloating and acne, this app helps with everything. It can help fix your period in a natural way. You don’t even have to type the symptoms, just tap on an icons that match them. There is data-backup so you don’t lose your data even when you change phones. The app can be pass-code protected for security.

You can learn what symptoms mean in each cycle phase and which foods to eat, what work-out to do and what kind of social and work activities to perform to resolve them. MyFlo is one of a kind app that can make your difficult days easier.

10. Period Calendar

Period Calendar can help whether your concern is conceiving, birth control, contraception, or regularity of period cycles. Period Calendar can help you to understand the internal rhythms of your body. whitespools.com

It has a great feature of being an intuitive calendar in which you can visualize non-fertile, fertile, ovulation, expected period and period days. You don’t have to be afraid of losing your calendar data as calendar, cycles and settings can be quickly backed up and restored.

It is an extremely easy-to-use application and shows vital information at a glance. You can easily log information on flow, intercourse, symptoms, moods, temperature, weight, medicine, PMS, other diary notes in the daily calendar. For girls and teens who only need to keep track of period dates and problems, the app allows to hide ovulation, fertility and intercourse related data.

The app can be personalized and customized according to individuals and this makes it a real cool period tracking app.


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Harshita Daryani

Still a student not only because life never stops teaching but also because the post-graduation is longer than she likes it to be. Reads fantasy, young-adult fiction, high fantasy, among other genres. Has great ambitions but little motivation. Firm believer of nothing in particular. Not fickle, just tends to change opinions if she learns something new about it. Loves House, Chandler, Stand-up, Harry Potter, T-shirts with funny quotes, etc.

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