Flovs
Clue


Clue: If you want to compare published data practices and ownership before choosing a period tracking app

Period and cycle tracking app that settled with the US FTC in 2021 over sharing health data with third parties despite promising not to
As of 1 September 2026, Flo is free to use. A menstrual cycle, fertility and pregnancy tracking app that logs sensitive reproductive health data and, in 2021, settled with the US Federal Trade Commission over allegations it shared health information with Facebook, Google and other third parties despite telling users that data would be kept private. Softwr lists it under Healthcare. Flo is made by Flo Health Inc, available on iOS, Android, Web.
Overview
Flo tracks menstrual cycles, ovulation predictions, symptoms and, for users trying to conceive or pregnant, pregnancy progress, using logged symptom and cycle data to generate predictions and health content. The free tier covers core cycle tracking and predictions; Flo Premium, commonly priced around $11.99 a month or roughly $59.99 to $99.99 a year or with a lifetime option, adds deeper health insights, expert content and personalised reports. The fact that has to be central to this entry is the 2021 FTC settlement. The Federal Trade Commission alleged that Flo Health had promised to keep users health data private while actually sharing sensitive information, including details about pregnancy and menstruation, with third party analytics and marketing platforms including Facebook and Google, through software development kits embedded in the app, contrary to its own stated privacy promises. Flo settled the case without admitting liability, agreed to obtain user consent before further sharing health data and to have an independent review of its privacy practices. Since then, Flo has published an Anonymous Mode, which the company states removes name, email and technical identifiers from health data entered in the app, and updated its privacy policy to describe current data practices and third party sharing more explicitly. Flo is headquartered in the UK with operations in Lithuania and the US; it is privately owned, not part of a larger platform company at the time of writing. Buyers are people tracking cycles, fertility or pregnancy who need to weigh the utility of the app against the sensitivity of what they are logging, particularly relevant in jurisdictions where reproductive health data could be subject to law enforcement requests, most acutely discussed in the US context following the overturning of Roe v Wade. What a buyer should actually check before relying on any privacy claim is the current version of Flos published privacy policy and whether Anonymous Mode is enabled by default or opt-in, since the answer to that question is a real decision factor and can change between app updates.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Flo.
Cross-shopped
Each pairing was judged by two reviewers asking whether a buyer would genuinely weigh the two against each other. The ones that failed were deleted rather than published.


Clue: If you want to compare published data practices and ownership before choosing a period tracking app


Peanut: If you want a community focused app for fertility, pregnancy and early parenting rather than cycle tracking specifically
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Flo Premium
$11.99 /mo
Capabilities
Cycle and ovulation tracking
Logged symptom and cycle data used to predict periods and fertile windows
Pregnancy mode
Week-by-week pregnancy tracking and content once a pregnancy is logged
Anonymous Mode
An opt-in setting Flo states disconnects entered health data from an identifiable profile
Symptom and mood logging
Daily logging of physical symptoms, mood and other health markers
Expert content library
Articles and video content from medical contributors, deeper library on Premium
Community and forums
Anonymous discussion spaces organised around health topics
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
The US FTC alleged Flo Health shared sensitive health data, including pregnancy and menstruation details, with third parties like Facebook and Google despite promising to keep it private. Flo settled without admitting liability, agreeing to obtain consent for future sharing and to an independent privacy review.
A privacy setting Flo states disconnects entered health data from an identifiable profile. Check the current app and privacy policy for whether it is on by default or must be turned on manually, since this affects what data is linked to your identity.
Core cycle tracking and predictions are free. Deeper personalised insights and expert content require Flo Premium.
Keep looking
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Softwr does not host reviews and shows no star rating for Flo, because a rating we did not collect is not ours to publish. What is here is the pricing and platform detail from the vendor’s own pages, limitations we could state concretely, and alternatives a reviewer confirmed people weigh against it. Tell us if any of it is wrong.
What people switch to, and what they give up
Every tier, and where the cost actually lands
Put it head to head with anything we hold
Its rating, and an embed for your own site
Clinical laboratory middleware and informatics from a diagnostics instrument manufacturer
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Open source, no licence feePeriod and cycle tracking app owned by German company Biowink, positioned around science based tracking and a published stance against sharing data with law enforcement
Free with a Plus subscriptionOpen source health information platform run from the University of Oslo and used by national ministries
Open source, no licence feeMulti-finding chest X-ray and head CT triage AI with FDA clearance on named findings, not on the whole model
quote