Flo Cycle & Period Tracker reviews
What users love and hate · 500 reviews analyzed · ★ 3.9
The most popular cycle tracker that users love for accurate predictions and educational content, but increasingly resent because almost everything has moved behind a paywall.
What users love
Accurate cycle and ovulation predictions are the main reason for years of loyalty
Those who stay praise Flo for accuracy: it correctly predicts the next period, ovulation and symptoms even with irregular cycles, and many have used it for 5–10 years.
this app is sooooo accurate it is 100% accurate for me even though my cycle is very irregular.
I really love the Flo app it's accurate, I've been using it for five years and counting.
Best tracker hands down. Very Accurate! Has everything you could possibly need to keep up with what's going on with your body.
Helps you understand your own body — educational value for newcomers
Many users, especially those new to tracking, say they learned more about their body in a day than in years. The app explains phases, symptoms and emotions and removes the stress of waiting for a period.
i got to know more about my body just using it for a day than i have known for years, its really helpful
Flo teaches me a lot of things I didn't know about the woman body
Flo helps reduce my stress of thinking and calculating when and what to expect respectively. Thank you FLO
What users hate
Almost everything is behind a paywall — only bare tracking is left free
Users who remember free articles and insights now hit a subscription wall on everything: reading an article, opening an answer card, asking the bot — it all requires premium. All that is left is logging days and symptoms.
This app is supposed to be free, but almost 90% of it you have to pay for.
it would be a great app if 80%+ wasnt behind a pay wall. All you can do for free honestly is just log your symptoms
Everything is hidden under subscriptions and ads. you can't even get one single fact/advice about your menstrual cycles without being bombarded.
Deceptive "free": a long questionnaire, then only a paid subscription at the end
The app is advertised as free, makes you complete a 20-minute personal questionnaire, and only then reveals that nothing works without a subscription or 14-day trial. People feel their time was wasted.
Be warned it's a paid app and doesn't tell you until after you've answered a bunch of qs. You only get a 14 day free trial.
20-minute set-up just to hit a pay-wall.
deceptive app, only lets you know it's a paid app after filling in a whole list of questions
Intrusive premium pop-ups and notifications on every tap
Every app open and nearly every tap is met with subscription and discount ads. Notifications arrive even after being turned off, and logging the cycle takes far longer because you constantly have to decline premium.
EVERYTIME i get a notif from the app, it leads to "this feature is only available on premium, wanna spend your money for no reason?" it's borderline spamming.
I'm met with pop-ups telling me to buy premium. Or I'll get a notification asking if I want to learn more about my symptoms and it takes me to purchase premium.
im clicking no 15x to premium offers
The chatbot is locked into preset replies — you can't ask your own question
The AI assistant pops up on every launch and won't let you type freely — only preset options. When a user already knows why her period is late, the bot still drags her through an irrelevant script, then asks for a subscription after a few replies.
all my answers are limited to preset responses. For example, if my period is late, I already know the reason why. The app asks me questions, but I can only choose from the preset responses.
I can't even chat with rhe bot without needing a free trial after like 4 pre made answers.
the AI chat bot that pops up every time I open the app is useless and in the way.
Data loss and login failures after switching phones
When users change or break their phone, the account often "isn't found" and years of logged data vanish. Sometimes the obstacle is the UI itself: the login button is unreachable past a hundred onboarding screens.
I loged out of my account only to log back in and realise that all my data is lost! I got a pop up message saying my account wasn't found!
I lost my phone so when I got a new one and downloaded Flo, I lost all my data and somehow lost the account I initially made.
you just can't reach the login button if you changed your phone. I had to undergo like a 100 onboarding screens with questions
Charges after cancellation and a painful refund process
Users cancel before the trial ends, yet the card is still charged — sometimes £34.99, sometimes several times over. Unsubscribing is hard, support goes silent for weeks, and refunds have to be forced through the bank.
CANCELLED my subscription. I now find Flo app designers have taken £34.99 for the FULL subscription. WHY??? How do I request a FULL refund please?
Now they've tried charging my card $34.99 3 times & I've emailed in 3 times telling them to STOP & explained that it keeps happening! I don't even open the app!!!
Deleted account but they are still trying to take money out my account.
Too much sexual content that settings won't remove
Users who just want a period tracker complain about graphically sexual content across insights, chats and the calendar. Turning it off in settings doesn't work — sex buttons and prompts remain, putting off celibate, aro/ace users and parents of teens.
Not interested in sex, removed its category, yet as soon as I open the app there's a huge sex button right there. Hiding sex content in settings doesn't do anything either, so much sex content in insights, chats, & all over the app.
Entirely too many pop-ups and very sexual.
I have used flo to track my cycle for years but it has too much sex related content. I turned it off in settings since I kept getting bombarded with them
Not for everyone: age limit of 16, poor support for LGBT users and partners
The app blocks girls under 16 (in the UK) even though periods start earlier; won't let same-sex couples share a cycle; pushes "girlhood" on trans users with no way to change pronouns. Partner mode barely works — beyond the calendar a partner sees nothing useful.
not accurate and also not inclusive for same sex couples. it assumes you're with a male partner and doesn't let both people share their cycle info.
I was immediately put off by the app shoving "girlhood" down my face.
People under 16 can't use the app and I find this actually really stupid
Anxiety around privacy and personal data
The amount and nature of data requested feels alarming: health-data collection isn't optional, people fear data could be sold without consent, and some were unnerved by a "press and hold" onboarding step that revealed a thumbprint in the logo.
first thing they ask is to collect your personal health data and data from other apps, this isn't optional, gross
they will sell your data without your consent
The type of questions and personal info they request made me feel uncomfortable like this app is for something beyond tracking periods and cycles
Handles pregnancy, perimenopause, PCOS and chronic conditions poorly
The app struggles with non-standard states: it counts pregnancy as an "irregular cycle", offers no way to track PCOS or chronic conditions, pushes "could you be pregnant?" during infertility, and lacks options for perimenopause and postpartum.
It keeps counting my pregnancy as a really long lapse in-between periods and therefore says my periods are irregular.
i cannot find anything for PCOS tracking. It would be so helpful if I could track my PCOS
suggestion: let us customise what we want to track (palpitations, blood pressure, etc) some of us have chronic diseases