Cookies and Similar Technologies

Last Updated: 21 August, 2019

This Cookie Notice ("Notice") explains how Butterfly Network, Inc. ("Butterfly", "we", "us" and "our") use cookies and similar technologies to recognize you when you visit, interact with or use any of our websites (such as, online advertisements or marketing communications (collectively for the purposes of this Notice, the "Sites"). This Notice explains what these technologies are and why we use them, as well as your rights to control our use of them.

We may use cookies and similar technologies to collect personal information, or information that becomes personal information if we combine it with other information. In such cases the Butterfly Privacy Notice (link will apply in addition to this Cookie Notice.


What are cookies?

Cookies are small data files that are placed on your computer or mobile device when you visit a website or use an online service. Cookies are widely used by organizations (like Butterfly) in order to make their websites or services work, or to function more efficiently, as well as to provide reporting information. There are two types of cookies: session cookies and persistent cookies. Session cookies are stored in temporary memory, not retained after an end-user's browsing session ends and do not obtain information from the end-user's device. On the other hand, persistent cookies persist on your device in the browser's subfolder and are activated again once you visit the site that created the particular cookie and remains for the duration period set within the cookie's file.

Cookies set by the website or service operator are called "first party cookies". Cookies set by parties other than the website or service operator are called "third party cookies". Third party cookies typically enable certain third party features or functionality to be provided on or through websites or services (such as, advertising, interactive content and analytics). The parties that set these third party cookies can recognize an individual's computer both when they visit the website or use the service in question and also when they visits certain other websites.

What cookies do we use and why?

There are three types of cookies that we may use:

Required cookies: These are cookies, also known as 'essential' or 'strictly necessary' cookies that are required for technical reasons in order for the Sites to operate. Without these cookies, the Sites would not be able to function. We want you to understand these required cookies, and why we use them, but we don't need to get your consent to use them on our Sites as we use these cookies only to provide you with services or information that you have requested.

Functional cookies: These cookies may be used to enhance the performance and functionality of our Sites; to manage your preferences; to analyze and personalize your use of, or to generally help us better understand how our Sites are being used. We think that these cookies will improve your experience when using the Sites but are non-essential to their use. As such, you may disable these cookies as set forth below, however please be aware that, without these cookies, certain functionality (like videos) may become unavailable.

Advertising/targeting cookies: These cookies are used to make advertising messages more relevant to you. They perform functions like preventing the same ad from continuously reappearing, ensuring that ads are properly displayed for advertisers, and in some cases selecting advertisements that are based on your interests. You may disable the use of these cookies as set forth below.

What cookies do we serve?

The specific types of first and third party cookies served through our Sites and the purposes they perform are described in our Cookie Preference Center.

You can review the cookies that we use as well as configure preferences about what cookie categories we store, when you access our Sites, by visiting the Cookie Preference Center, available here:

Below is also further information about certain third parties we work with:

Google Analytics: We use cookies served by Google Analytics to collect limited data directly from end-user browsers to enable us to better understand your use of the Sites, including making use of the demographics and interests reports services of Google Analytics. Further information on how Google collects and uses this data can be found at You can opt-out of all Google supported analytics within the Services by visiting

Hotjar: We use Hotjar in order to better understand our visitor to our Sites needs and to optimize this service and experience. For further details, please see Hotjar’s privacy policy which can be found here: You can opt-out of all Hotjar supported analytics and data collection through the Site by visiting:

Facebook: We also use the pixel function of Facebook Custom Audiences to identify users who have landed on certain pages for the purposes of target group-orientated remarketing and advertising. The Facebook pixel stores a cookie, which means that information about your visit to our Site will be shared with Facebook. Also, as part of the "advanced matching" undertaken by Facebook, other personal information (such as telephone number, email address, Facebook ID) may be shared with Facebook in a protected (hashed) form.  These cookies and the information collected is used to create target groups to  help Facebook deliver advertising on our behalf to users who have previously visited our Site, when they are on Facebook or a digital platform powered by Facebook Advertising and to track advertising success.  You can modify your Facebook Ad settings to restrict these advertisements. Navigate to Settings/Adverts in your Facebook account to adjust your preferences. Learn more about the different types of Facebook cookies here:


What similar technologies do we use?

Cookies are not the only way to recognize or track users of our Sites. We may use other similar technologies from time to time, like web beacons (sometimes called "tracking pixels" or "clear gifs") to track users of our Sites. These are tiny graphics files that contain a unique identifier that enables us to recognize when someone has interacted with our Sites, such as opening an e-mail that we have sent them. The use of web beacons (or similar technologies) allow us, for example, to monitor the traffic patterns of users within our Sites, to deliver or communicate with cookies, to understand whether you have come to our Sites from an online advertisement displayed on a third-party website, to improve our Sites, and to measure the success of e-mail marketing campaigns. In many instances, these technologies are reliant on cookies to function properly, and so declining cookies will impair their functioning.


Butterfly tracks and analyses both individualized usage and volume statistical information related to your use of our Sites. We also partner with third parties (such as advertisers and ad networks) to display advertising on our Sites and/or to manage and serve advertising on other third party sites.

These third parties use cookies, web beacons, pixel tags and similar tracking technologies to collect and use certain information about your online activities on our Sites and/or other third party sites and services. This information may be used alone or in combination with information about you we obtain from other sources (like our data partners) and contact details, professional information and Butterfly transaction history to infer your interests and deliver you targeted advertisements and marketing that are more tailored to you based on your browsing activities and inferred interests ("Interest Based Advertising"). Such Interest Based Advertising will only be delivered where permitted by applicable law and in accordance with your advertising / marketing preferences.

Our third party service providers may also use cookies or similar technologies to collect information about your visits to our Sites and/or other third party sites to measure and track the effectiveness of advertisements and our online marketing activities (for example, by collecting data on how many times you click on one of our advertisements).


You have the right to decide whether to accept or reject cookies (apart from those that are required or essential).

You can exercise your preferences in relation to cookies served: (i) on our Sites by using our Cookie Preference Center or (ii) by setting or amending your browser controls as described below.

Browser controls: The configuration of most internet browsers allows you to manage cookies, including clearing or blocking their use. Please be aware that disabling cookies can impair optimal navigation of our Website.  As the means by which you can refuse cookies through your web browser controls vary from browser-to-browser, you should visit your browser's help menu for more information.

Disabling most Interest Based Advertising: Most advertising networks offer you a way to opt out of Interest Based Advertising. If you would like to find out more information, please visit or

Opting out of tracking via your mobile device: If you are using a mobile device, you can opt out of having your mobile identifier used for certain types of Interest Based Advertising, including those performed by us, by accessing the settings in your Apple or Android mobile device and following the most recent published instructions. If you opt-out, no further data collection or tracking will occur. This means that if at a later stage, you decide to opt-in, we will not be able to continue and track you using the same ID as before and you will for all practical purposes be a new user to our system.

Do Not Track: Some Internet browsers - like Internet Explorer, Firefox, and Safari - include the ability to transmit "Do Not Track" or "DNT" signals. Since uniform standards for "DNT" signals have not been adopted, our Sites do not currently process or respond to "DNT" signals. Butterfly takes privacy and meaningful choice seriously and will make efforts to continue to monitor developments around DNT browser technology and the implementation of a standard. To learn more about "DNT", please visit "All About Do Not Track".


How often will we update this Cookie Notice?

We may update this Cookie Notice from time to time in order to reflect, for example, changes to the cookies and related technologies we use or for other operational, legal or regulatory reasons.

Each time you use our Sites, the current version of the Notice will apply. When you use our Sites, you should check the date of this Notice (which appears at the top of this Notice) and review any changes since the last version. You should review this Cookie Notice regularly to stay informed about our use of cookies and related technologies.

Where can you obtain further information?

To contact us with your questions or comments regarding this Notice or the information collection and dissemination practices of this website, please email us at Alternatively, you can contact us in writing at: 530 Old Whitfield St, Guilford, CT 06437 ATT: Data Protection Officer.