You're reading an archived version of our Privacy Policy. View the current version.​

When you use Flo, you are trusting us with intimate personal information. We are committed to keeping that trust, which is why our policy as a company is to take every step to ensure that individual user's data and privacy rights are protected and to provide transparency about our data practices. 

The primary purpose of our Privacy Policy is to provide a clear understanding of what data we collect, how it is used and shared, and how you can control it.

We recommend that you read this Privacy Policy in full along with our Terms of Use, but here are a few key takeaways we hope you will find useful:
  • The data that serves you

    The data that serves you

    When you use Flo, we may collect your Personal Data and use it to improve the user experience, such as increasing the accuracy of predictions, personalizing the insights you get, etc. For research activities we use only de-identified or aggregated data, which can not be associated with you.

  • You can contribute to the growth of Flo community

    You can contribute to the growth of Flo community

    Provided we receive your consent, we may use technical information about you (your unique technical identifier, age group, subscription status, and the fact of application launch) for promotion purposes to reach more people like you. You can always withdraw your consent to share this data.

  • You are in control

    You are in control

    You may access your Personal Data, modify, correct, erase, and update it by writing to us at You may also download the information Flo collected about you by contacting us. Please be aware that erasing or modifying some Personal Data inserted by you may affect your possibility to use Flo in the future.

  • Your data is safe with Flo

    Your data is safe with Flo

    Your employer, your insurance company, even your relatives - none of them will ever know about the symptoms you log or the information you get in Flo until you tell them. We take all reasonable and appropriate measures to protect your Personal Data from loss, theft, misuse or unauthorized access.

  • We protect the privacy of children

    We protect the privacy of children

    That is why you should be at least 13 to use Flo (16 for EU residents). We do not intentionally collect information about children, and we do not allow people to use the App if they are younger than 13 (16 for EU residents). Moreover, some of the App functions may be limited to users that are younger than 18.

  • You can freely talk to us

    You can freely talk to us

    We believe in transparent and open dialogue, so we strongly encourage you to contact our Support Team, our Data Protection Officer or send a message via our dedicated email if you have questions about this policy, how we collect or process your Personal Data, or anything else related to our privacy practices.


This Privacy Policy explains how Flo Health, Inc. (“Company” or “we” or “us”) collects, stores, uses, transfers and shares  Personal Data from our users (“you”) in connection with:
  • the Flo fem ® mobile application, 
  • website including any products and services related to it ("Website"),

(all collectively, the “App”).

We reserve the right to and may change this Privacy Policy from time to time. If we make any material changes, we will notify you by email (sent to the email address specified when you register), through the App, or by presenting you with a new version of this Privacy Policy. Your continued use of the App after the effective date of an updated version of the Privacy Policy will indicate your acceptance of the Privacy Policy as modified. In some cases, you will have to accept changes to the Privacy Policy explicitly. Please review our Website and the App for the latest updates on our data privacy practices. If you do not accept the terms of the Privacy Policy, we ask that you do not use the App. Please exit the App immediately if you do not agree to the terms of this Privacy Policy.

Personal Data you provide us directly

General Information. When you sign up to use the App, we may collect Personal Data about you such as:

  • Name;
  • Email address;
  • Gender;
  • Date of birth;
  • Password or passcode;
  • Place of residence and associated location information;
  • ID (for limited purposes).
Health and Well-being. When you use the App, you may choose to provide personal information about your health and well-being such as:
  • Weight;
  • Body temperature;
  • Menstrual cycle dates;
  • Various symptoms related to your menstrual cycle and health;
  • Other information about your health (including sexual activities), well-being, and related activities, including personal life (collectively, “Personal Data”).

You also may give us the ability to import into the App Personal Data about your health and activities from third-party services such as Apple HealthKit and Google Fit. Such imported Personal Data may include sports activities, weight, calories burnt, heartbeat rate, number of steps/distance traveled, and other data about your health. In order for us to process any Personal Data under this category we will explicitly ask your consent on the registration screen.

Personal Data we may collect automatically

When you access or use the App, we may automatically collect the following information:

Device Information:

  • Hardware model;
  • Information about the operating system and its version;
  • Unique device identifiers (e.g. IDFA);
  • Mobile network information;
  • Device storage information.

Location Information:

  • IP address;
  • Time zone;
  • Information about your mobile service provider.

App usage data, including, among others:

  • Frequency of use;
  • Areas and features of our App you visit;
  • Your use patterns generally;
  • Engagement with particular features.

To collect this information, we may also send cookies to your mobile device or computer or engage other tracking technologies. See more in our Cookie Policy.

Data from external sources. We may use third-party tools like AppsFlyer that provide us some of your attribution data that we further utilize to customize and personalize your App experience. We may also use such data for statistical purposes and analytics.

As any compliant organization we will not collect and use your Personal Data without letting you know or having any reasons for that whatsoever. So, for any purpose of processing your Personal data we need to have some valid ground, or so-called “legal basis”. 

Depending on a case, we will process your Personal data based on the following legal basis:

  • Your consent. Your permission to process the Personal Data that you provide to us on the registration screen or at any other appropriate moment if necessary; 
  • Your contractual relations with us. We may need to process some Personal Data for making the App and its services available for access, installation and further use;
  • Legitimate interest. We may process some of your personal data to pursue commercial interests and wider societal benefits;
  • Legal obligation. We may be obligated to process some of your Personal Data to comply with applicable laws and regulations.     

Here is the description of the main type of processing activities we conduct with your Personal data and related legal basis for that (with some basic examples):

Purpose of processing
Legal basis for processing
to analyze, operate, maintain and improve the App, to add new features and services to the App, to support the existing functions of the App
We may use your cycle data to predict your future cycles or ovulation
to customize content and materials you see when you use the App
Based on your preferences and logged-in information we may provide you certain suggested articles or materials (e.g. stories) to read
to customize product and service offerings and recommendations to you, including third-party products and offerings (excluding data from Apple HealthKit and Google Fit)
We may send you a discount offer for Flo Premium to your email. You can opt-out anytime by contacting us at
to provide and deliver the products and services you request, process transactions and send you related information, including confirmations and reminders
Using your device data we may send you a reminder to log your period or symptoms to make predictions more accurate You can disable this anytime in your phone settings.
for billing (invoicing), account management and other administrative purposes, if applicable
We may send you an email containing your invoice, if applicable
to respond to your comments, questions and requests and to provide customer service
We may process your name and email to reply to your support request
to send you technical notices, updates, security alerts and support and administrative messages
Legitimate interest
We may send you an email notification that contains a customer satisfaction survey You can opt-out anytime by contacting us at
to monitor and analyze trends, usage and activities in connection with our App
We may analyze your browsing activity in the App to understand what you like or dislike about it in order to improve your future experience
solely with respect to information that you agree  to share, for Company promotional purposes (except data from Apple HealthKit and Google Fit)
If you give your consent, we can post your review or comment on our website
to verify your identity 
Legal obligation
We may ask for age verification (e.g. an ID) if we have reasonable doubts regarding your age

Principles of processing

Data minimization and purpose limitation. We will not process Personal Data in a way that is incompatible with the purposes for which it has been collected or subsequently authorized by you or collect any Personal Data that is not needed for the mentioned purposes. For any new purpose of processing we will ask your separate consent. 

No sale of Personal Data. We will never sell, rent, or disclose your Personal Data. We may share only some of your Personal Data to our service providers strictly limited to cases and purposes stipulated in this Privacy Policy. We will also not use the information gained through your use of the HealthKit and Google Fit framework for advertising or similar services, or sell it to advertising platforms, data brokers, or information resellers.

It does not matter what country or region you come from. We are committed to providing you vast privacy rights for your Personal Data.

What rights?

Correction of Personal Data

Correction of Personal Data

If you believe that your Personal Data is inaccurate, you have a right to contact us and ask us to correct such Personal Data. 

Restriction of Processing

Restriction of Processing

You also have a right to request that the processing of your Personal Data be restricted, if you contest the accuracy of the Personal Data and we need some time to verify its accuracy.

Information rights and access to your Personal Data (including in portable form)

Information rights and access to your Personal Data (including in portable form)

The App gives you the ability to access Personal Data within the App. You have a right to request information about what Personal Data we have about you, to access all your Personal Data and receive a copy of it, including in a structured and portable form (.json). We also commit to notify you, as required under applicable laws, about Personal Data breaches related to your Personal Data.

Erasure of your Personal Data

Erasure of your Personal Data

You may ask us to erase your  Personal Data, if you withdraw your consent to processing, if you believe such processing is not compliant with applicable law and in some other cases. Please be aware that erasing some Personal Data may affect your App experience. 

Right to object to the processing of your Personal Data

Right to object to the processing of your Personal Data

In some cases you can object to the processing of your Personal Data, for example, if we process it under legitimate interest basis by contacting us at

How to exercise your privacy rights

Сontact us at to exercise any of your privacy rights. 

We will exercise them within 30 days after receipt. It may take us up to 90 days in some cases, for example for full erasure of your Personal Data stored in our backup systems. We will let you know if we need more time and explain the reasons for the delay. 

What else?

Please keep in mind that if we receive a vague request, we may engage the individual to better understand the motivation and content of the request. We may also refuse manifestly unfounded and excessive (repetitive) requests. 

We might also require you to prove your identity in some cases. Normally, we make sure to verify that the request is coming from the same email as you indicated when registering in the App. In case of doubt we may ask you to undergo some additional verification. This is made to ensure that no rights of third parties are violated by your request.

Subject to applicable laws, you may have a right to lodge a complaint with your local data protection authority about any of our activities (related to your privacy rights, among others) that you think are not compliant with applicable law. However, if you think that we do something incorrectly, let us know first at We care about your privacy and want to make sure that we did everything to address any of your concerns.

We will not share your Personal Data with any third parties except as specified below.

Processing to find new Flo users and stay in touch with you

We may share some of your non-health Personal Data with AppsFlyer, a mobile marketing platform, that handles your Personal Data in accordance with our instructions. By using AppsFlyer and its integrated partners we are able to reach you and people like you on various platforms and spread the word about the App to help more women to stay in control with their health and well-being. If we need to share your Personal Data with other platforms for this purpose, except as defined herein, we will ask for your consent. If this is required by law, we will secure your consent to share your non-health data with AppsFlyer and its integrated partners. 

Here is a step-by-step illustration of how we work with  AppsFlyer and its integrated partners:

1. You become a Flo user  and we start sharing Personal Data, strictly limited to the following set: 

a)  Technical identifiers: IP address (which may also provide general location information), User agent, IDFA (Identifier for advertisers), Android ID (in Android devices), Google Advertiser ID, Customer-issued user ID and other similar unique technical identifiers.
b) Your age group;
c) Your subscription status;
d) The fact of application launch.

2. Flo App sends your data to AppsFlyer, which analyzes it and provides us reports and insights on how to optimize our promotional campaigns.

3. At the same time, AppsFlyer sends your data to some of its integrated partners (e.g. Pinterest, Google Ads, Apple Search Ads, FB marketing network, and a couple of others) to find you or people like you on different platforms, including social media websites. These integrated partners analyze your data and show relevant information about the App to people who might be potentially interested in it or remind you about revisiting the App, if you stopped using it a while ago. 

4. This is how you and new users find out more about Flo, get accurate cycle predictions, learn about the meaning of their bodies’ cues and receive credible information about their health. You contribute to the growth of the Flo community by providing your consent to use the Flo app. 

Read more about AppsFlyer here and its integrated partners here.

Opt-out options. You can withdraw your consent or opt-out, whatever applies in your case, from  sharing of your Personal Data in accordance with this subsection anytime by using one of the following options:

  1. By contacting us at;
  2. By adjusting your device settings in iOS or Android in order to stop sharing your IDFA or Android Advertising ID.

Processing to make the App run 

We engage processors that perform particular operations with your Personal Data for us.

Processors are companies that help us run the App, support our communication with you or perform other App-related activities. They may process certain Personal Data on our behalf to accomplish the goals related to the App functions and associated activities. Processors act only in accordance with our instructions and process only such amount of Personal Data as we instruct them to process. We remain fully liable for any acts or omissions of our processors and undertake to execute formal data processing agreements with them to the extent required by applicable law.

Here is the list of our main processors:

Processor's privacy policy
Data collected
Infrastructure and security
AWS (Amazon Web Services, Inc.) 
  • All Personal Data
  • storage of all Personal Data when you use the App
Infrastructure and security
Cloudflare (Cloudflare, Inc.)
  • All Personal Data 
  • security of the App, content delivery
Infrastructure and security
Auth0 (Auth0, Inc.)
  • Email address
  • IP address
  • Name
  • authentication and authorization services
Email communications
SendGrid (SendGrid, Inc., USA)
  • Email address
  • Personalized texts
  • to reach you with our newsletters, surveys and notifications
Email and in-App communications
SurveyMonkey (SurveyMonkey Inc., USA)
  • IP address
  • User ID
  • Results of surveys
  • to deliver different Service-related surveys 
Analytical tools
Looker (Looker Data Sciences, Inc., USA)
  • App usage data
  • to understand how you use the App, engage with particular features and what you like or dislike the most
  • to generate statistical reports
Analytical tools
Amplitude (Amplitude, Inc.)
  • App usage data
  • to understand how you use the Web services, engage with particular features and what you like or dislike the most to engineer product experiences
Internal functions
Algolia (Algolia, Inc.) 
  • IP address and user ID
  • Content of the search request
  • Age
  • Aim and usage purpose
  • to provide you search functions inside the App, including search suggestions for all users
  • Some Personal Data is needed to increase the accuracy of the search
Customer support
Zendesk (Zendesk Inc., USA)
  • Email address
  • Content of the emails
  • to process and sort all emails received from you

Apple (Apple, Inc.)