Privacy Policy

Last updated: August 6, 2025

Please see our Notice at Collection below for an overview of our privacy practices.

At Most Days, Inc. dba Deathclock or Deathclock.ai (“Most Days”, “we”, “us”), we take your privacy seriously. This Privacy Policy describes how we collect and process your personal information through our website, mobile application, online service offerings and other products or services (collectively, the “Services”). 

We collect consumer health data in connection with our Services. Please refer to our Consumer Health Data Privacy Policy for additional information about the processing of your consumer health data, and your rights under applicable state privacy laws with respect to such data. 

Your use of the Services is at all times subject to our Terms of Use, which incorporate this Privacy Policy. When we use the term “Policy” or “Privacy Policy”, we mean both this privacy policy and our Consumer Health Data Privacy Policy. Any terms we use in this Policy without defining them have the definitions given to them in the Terms of Use.

Categories of Personal Information We Collect

We collect the following categories of personal information:

Information you provide to us, including:

• Contact information, such as your first and last name, email address, phone number and mailing address.
• Account information, including username and password.
• Health and wellness related data, including medical conditions, lifestyle habits and diagnostic information such as blood test results or other biomarker panels that you choose to share with us (see our Consumer Health Data Privacy Policy [KD3]for more information). 
• Commercial data, including purchase history.
• Payment information needed to complete your transactions with us, including name, payment card information, and billing information. This information is processed by our payment service providers (Stripe Inc., Apple Inc.). We do not have access to your full payment card information. Please see their terms of service and privacy policy for information on their use and storage of your personal information.
• Demographic data such as your age, date of birth, gender and race.
• Communications we exchange with you, including support services or other types of communications.
•  

 

Information we receive from third party sources, including:

• Third-party login information, such as social network or other third-party site or service account credentials you use to access the Services. The information we receive when you authenticate through a third-party service depends on the settings, permissions and privacy policy controlled by that third-party service. You should always check the privacy settings and notices in the relevant third-party services to understand what data may be disclosed to us or shared with us.
• Advertising partners, including information about you that we receive from our vendors who assist us with marketing or promotional services related to how you interact with our websites, applications, products, Services, advertisements or communications.
• Data providers, including publicly available information about you.
• Third-Party Health Tracking Apps. If you explicitly grant us permission to collect data from third-party health tracking apps, such as Apple Health or Google Fit, the information that you authorize will be transmitted to us. We use the information you share with us through third-party health tracking apps solely to provide you the Services, including to tailor habit improvement recommendations. We do not use information obtained through third-party health tracking apps for advertising nor do we sell or share such information.

Information we collect automatically, including:

• Device data, such as your computer’s or mobile device’s operating system type and version, manufacturer and model, browser type, screen resolution, RAM and disk size, CPU usage, device type (e.g., phone, tablet), IP address, unique identifiers (including identifiers used for advertising purposes), language settings, mobile device carrier, radio/network information (e.g., WiFi, LTE, 3G), and general location information such as city, state or geographic area.
• Usage data, such as pages or screens you viewed, how long you spent on a page or screen, the website you visited before browsing to our website, navigation paths between pages or screens, information about your activity on a page or screen, access times, duration of access, and whether you have opened our marketing emails or clicked links within them.
• Session recording information, such as our use of third-party software that enables us to record your interactions and engagement with our websites and mobile applications for our performance analysis and product improvement purposes.   

We collect this information using cookies and other similar technologies. For more information, please visit our Cookie Policy.

How We Use Personal Information

We use personal information in order to:

• Provide the Services, including to:
  • Estimate your expected longevity and provide personalized habit change recommendations and insights based on the information you provide, including your blood test results and other health metrics you share with us.
  • Provide support and assistance relating to the Services.
  • Create and manage your account.
  • Process orders or other transactions.
• Communicate with you about the Services, including to respond to your requests, questions and feedback, and sending you announcements, updates, security alerts, and support and administrative messages.
• Send you direct marketing communications about products or services we think may interest you as permitted by law.
• Improve and develop the Services, including testing, research, and analysis development. We may create aggregated, de-identified or anonymized data from the personal information we collect, including by removing information that makes the data personally identifiable to a particular user. We may use such aggregated, de-identified or anonymized data and share it with third parties for our lawful business purposes, including to analyze, build and improve the Services and promote our business, provided that we will not share such data in a manner that could identify you.
• Display advertisements, including interest-based or online behavioral advertising.
• Protect against or deter fraudulent, illegal or harmful actions and maintain the safety, security and integrity of our Services.
• Comply with our legal or contractual obligations, resolve disputes, and enforce our Terms of Use.
• Protect the rights, property or safety of you, us, or another party.
• Respond to law enforcement requests as required by applicable law, court order, or governmental regulations.
• For any other legitimate business purpose in compliance with applicable laws.

How We Disclose Personal Information

We disclose your personal information to our service providers and other third parties (described below) for the following purposes:

• Auditing and reporting, including counting ad impressions to unique visitors, verifying positioning and quality of ad impressions, and auditing compliance with this specification and other standards.
• Detecting security incidents, protecting against malicious, deceptive, fraudulent, or illegal activity, and prosecuting those responsible for that activity.
• Debugging to identify and fix software bugs or crashes.
• Short-term, transient use of personal information that is not used by another party to build a consumer profile or otherwise alter your consumer experience outside the current interaction.
• Performing services on our behalf, including maintaining or servicing accounts, providing customer service, processing or fulfilling orders and transactions, analyzing lab results to deliver your longevity insights, verifying customer information, processing payments, providing analytic services.
• Undertaking internal research to improve our Services.

We may disclose your personal information to:

• Service Providers. These include:
  • Security and fraud prevention services.
  • Hosting and other technology and communications providers.
  • Laboratory data service providers to interpret your blood test results and generate the longevity insights you requested. 
  • Analytics providers. These parties provide analytics on web traffic or usage of the Services. They include:
    • Companies that track how users found or were referred to the Services.
    • Companies that track how users interact with the Services.
  • Staff augmentation and contract personnel.
  • Generative AI service providers, such as Google’s Gemini and OpenAI’s ChatGPT.
    • We maintain agreements with our generative AI service providers, which prohibit their use of personal information we provide to them for any purposes, including model training, except as necessary to provide their services to us.
  • Payment processors.
• Advertising Partners. These parties help us market and advertise our Services and provide you with other offers that may be of interest to you. They include:
  • Ad networks.
  • Data brokers.
  • Marketing providers.
    • The information we provide to advertising partners is limited to IP addresses, device IDs and historical purchases made through the Services. We do not share health-related personal information with advertising partners. 
• Social media services, if you interact with them through your use of the Services. 
• Affiliates of Most Days.
• Business transferees, such as acquirers and other relevant participants in business transactions (or diligence or negotiations for such transactions) involving a corporate divestiture, merger, consolidation, acquisition, reorganization, sale, or other disposition of all or any portion of the business or assets of, or equity interests in, Most Days or our affiliates, including, in connection with a bankruptcy or similar proceedings. Should one of these events occur, we will make reasonable efforts to notify you.
• Other third parties at your direction or with your authorization.

Your Rights and Choices

Account information. If you have an account with us, you can review and update certain account information by logging into your account. 

Opt out of marketing communications. You may opt out of marketing-related emails and other communications by following the opt-out or unsubscribe instructions at the bottom of the emails or within the messages or other communications you receive from us. You may continue to receive service-related and other non-marketing emails or other communications.

Personal information requests 

Depending on your location and the nature of your interaction with the Services, you may have the following rights in relation to your personal information:

• Information about how we collect and use personal information. We have made this information available to you in this Privacy Policy.
• Access to a copy of the personal information that we maintain about you. Where applicable, we will provide the information in a portable, machine-readable, readily usable format.
• Opt-out of the sale of your personal information or sharing of your personal information for interest-based advertising. We may share information with third-party advertising partners and allow them to collect information about your use of the Services to show you ads as described in the “How We Use Personal Information” and “How We Disclose Personal Information” sections above. Our disclosure of information to these partners may be considered a “sale” or “sharing” of personal information or “targeted advertising” under applicable laws. You may opt out of these disclosures as described below under “How to submit personal information requests”. 
• Correction of personal information that is inaccurate or out of date.
• Deletion of personal information that we no longer need to provide the Services or for other lawful purposes.
• Opt out of “profiling” in furtherance of solely automated decisions that produce legal or similarly significant effects. We do not engage in such profiling.
• Appeal our denial of your personal information request.

You are entitled to exercise the rights described above free from discrimination.

How to submit personal information requests

To submit a request for information, access, correction or deletion of your personal information, or to appeal our denial of your personal information request, please email us at help@mostdays.com. 

To opt out of our use or sharing of personal information for targeted advertising, click the “Privacy Choices” link on the footer of our website or in our mobile application and follow the instructions, or enable the Global Privacy Control setting within the browser that you use to access our Services. Learn more at the Global Privacy Control website. Please note that your opt out will be specific to the device and browser you use when you opt out. We do not have actual knowledge that we have sold or shared the personal information of children under the age of 16.

Please note that in some circumstances, your choices may be limited, such as where fulfilling your request would impair the rights of others, our ability to provide a service you have requested, or our ability to comply with our legal obligations and enforce our legal rights.  In those circumstances, we will still respond to notify you of such a decision. In some cases, we may also need you to provide us with additional information, which may include personal information if necessary to verify your identity and the nature of your request. 

Data Security and Retention

We seek to protect your personal information from unauthorized access, use and disclosure using appropriate physical, technical, organizational and administrative security measures based on the type of personal information and how we are processing that data. For example, the Services use industry standard Secure Sockets Layer (SSL) technology to allow for the encryption of personal information you provide to us. You should also help protect your data by appropriately selecting and protecting your password and/or other sign-on mechanism; limiting access to your computer or device and browser; and signing off after you have finished accessing your account. Although we work to protect the security of your account and other data that we hold in our records, please be aware that no method of transmitting data over the Internet or storing data is completely secure. We cannot guarantee the complete security of any data you share with us, and except as expressly required by law, we are not responsible for the theft, destruction, loss or inadvertent disclosure of your information or content.

We retain Personal Data about you for as long as is necessary to fulfill the purposes for which it was collected and processed or as otherwise necessary to provide you with our Services. In some cases we retain Personal Data for longer, if doing so is necessary to comply with our legal obligations, resolve disputes or collect fees owed, or is otherwise permitted or required by applicable law, rule or regulation. We may further retain information in an anonymous or aggregated form where that information would not identify you personally.

Personal Information of Children

We do not knowingly collect or solicit personal information from children under 16. If you are a child under 16, please do not attempt to register for or otherwise use the Services or send us any personal information. If we learn we have collected personal information from a child under 16, we will delete that information. If you believe that a child under 16 may have provided us personal information, please contact us at help@mostdays.com

Use of the Services from Outside of the U.S.

Our Services are hosted and operated by Most Days in the United States (“U.S.”). If you are using our Services from a location outside of the U.S., please be aware that the privacy and data protection laws in the U.S. differ from those of other countries and may not be afforded the same level of protection. If you are using our Services from a location outside of the U.S., you acknowledge that we may process personal information about you in the U.S. accordance with the terms of this privacy policy.  

Changes to this Privacy Policy

We're constantly trying to improve our Services, so we may need to change this Privacy Policy from time to time. If we make material changes, we will alert you to by updating the date of this Privacy Policy and posting it on our website. If required by law to provide notification of changes in another way we will do so, such as by sending you an email, and/or by some other means. If you use the Services after any changes to the Privacy Policy have been posted, that means you agree to all of the changes. Use of information we collect is subject to the Privacy Policy in effect at the time such information is collected.

Contact Information

If you have any questions or comments about this Privacy Policy, the ways in which we collect and use your personal information, your choices and rights regarding such use, please do not hesitate to contact us by email at: help@mostdays.com, or by mail at:

Most Days, Inc.

548 Market St
PMB 15058
San Francisco, CA 94104-5401

United States

 

 

Notice at Collection

The following details the categories of personal information that we collect and have collected over the past twelve (12) months. As this is a high-level overview of our privacy practices, we encourage you to read the entire Privacy Policy for a comprehensive understanding of our practices. We retain your personal information as described in the “Data Security and Retention” section of the Privacy Policy.

Category of Data Collected	How We Collect	Primary Purposes of Processing	Third Parties With Whom We Share
Identifiers, such as first and last name, email, phone number, IP address, device ID, type of device/operating system/browser used to access the Services and other similar identifiers	When you visit or use our Services; from third-party sites and services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Demographic data, such as age, date of birth, gender, race	When you use our Services; from third-party sites and services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Commercial information, such as purchase history and records of Service purchased	When you use our Services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Personal information categories listed in the California Customer Records Statute (e.g., name, contact details)	When you use our Services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Internet or other electronic network activity information, including, but not limited to, browsing history, search history, and information regarding a consumer’s interaction with an internet website application, or advertisement.	When you visit or use our Services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Geolocation data	When you visit our Services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)
Sensitive personal information (as defined in CA Civil Code 1798.140 (ae))	When you use our Services	To deliver our Services; to improve, monitor, and personalize our Services	Service providers (Can You Limit Sharing: No)[OT5]
Inferences drawn from information to create a profile about your behavior, preferences, abilities, aptitudes, etc.	When you use our Services	To deliver our Services; to improve, monitor, and personalize our Services; and for marketing and advertising	Service providers (Can You Limit Sharing: No) Third parties (Can You Limit Sharing: Yes)

 

 

Cookie Policy

Last updated: August 6, 2025

 

This Cookie Policy explains how Most Days, Inc. uses cookies and similar technologies in connection with our Services.

If you have any questions or concerns about this Cookie Policy, please contact us at help@mostdays.com or as otherwise described in our Privacy Policy.

What are cookies and similar technologies?

 

Cookies are text files that websites store on a visitor’s device to uniquely identify the visitor’s browser or to store information or settings in the browser for the purpose of helping you navigate between pages efficiently, remembering your preferences, enabling functionality, helping us understand activity and patterns, and facilitating online advertising.

Local storage technologies, like HTML5, provide cookie-equivalent functionality but can store larger amounts of data, including on your device outside of your browser in connection with specific applications.

Web beacons, also known as pixel tags or clear GIFs, are used to demonstrate that a webpage or email was accessed or opened, or that certain content was viewed or clicked.

This Cookie Policy refers to all these technologies collectively as “cookies.”

How we use cookies and other similar technologies

We use both persistent cookies and session cookies. 

Persistent cookies stay on your device for a set period of time or until you delete them, while session cookies are deleted once you close your web browser. We use persistent cookies, for example, to record your choice of language and country location. The cookies placed through your use of our Services are either set by us (first-party cookies) or by a third party at our request (third-party cookies).

We also allow our advertising partners to collect this information through our Services.

What types of cookies and similar technologies do we use?

We use the following categories of cookies and similar technologies:

Essential. Essential Cookies are required for providing you with features or services that you have requested. For example, certain Cookies enable you to log into secure areas of our Services. Disabling these Cookies may make certain features and services unavailable.

Functional. We use these cookies to enhance the functionality and performance of the Services.

Analytics. We use these cookies to help us understand how visitors use our Services, such as by collecting information about the number of visitors to the Services, what pages visitors view on our Services and how long visitors are viewing pages on the Services. These Cookies also help us measure the performance of our advertising campaigns in order to help us improve our campaigns and the Services' content for those who engage with our advertising. 

Advertising. Advertising or retargeting Cookies collect data about your online activity and identify your interests so that we can provide advertising that we believe is relevant to you. We and our third-party advertising partners use these cookies to collect information about how you use our Services and use that information to serve online ads that may be relevant to your interests.

Web Beacons. We use web beacons, also known as pixel tags or clear GIFs, to demonstrate that a webpage or email was accessed or opened, or that certain content was viewed or clicked. Our emails may contain web beacons to tell us whether they are opened and verify any clicks through to links within an email. We (and our marketing service provider on our behalf) use this information to help us understand how an email campaign performed, what types of emails and content our recipients find interesting, and what actions our recipients took, so we can improve our email campaigns in the future and make our content more relevant.

Session Recording. We use session recording software to enable us to record the use, interaction and engagement of users of our websites and mobile applications. This may include recording user input, browser or screen output, mouse and keyboard inputs and mobile device gestures. We use such information to help us optimize our websites and mobile applications and improve user experience. By using our websites or mobile applications, you consent to our use of session recording software.   

How you can control the use of cookies and limit online tracking:
 

Blocking cookies in your browser. Most browsers let you remove or reject cookies, including cookies used for interest-based advertising. To do this, follow the instructions in your browser settings. Many browsers accept cookies by default until you change your settings. For more information about cookies, including how to see what cookies have been set on your device and how to manage and delete them, visit www.allaboutcookies.org.
Use the following links to learn more about how to control cookies and online tracking through your browser: Firefox; Chrome; Microsoft Edge; Safari (Mac); Safari (Mobile/iOS)

 

Blocking advertising ID use in your mobile settings. Your mobile device settings can provide functionality to limit use of the advertising ID associated with your mobile device for interest-based advertising purposes.

Using privacy plug-ins or browsers. You can block our websites from setting cookies used for interest-based ads by using a browser with privacy features, like Brave, or installing browser plugins like Privacy Badger, Ghostery, or uBlock Origin, and configuring them to block third party cookies/trackers.

Google Analytics. We use Google Analytics to help us better understand how people engage with our Services by collecting information and creating reports about how users use our Services. Google's ability to use and share information collected by Google Analytics about your visits to the Services is subject to the Google Analytics Terms of Use and the Google Privacy Policy. You have the option to opt-out of Google's use of cookies by visiting the Google advertising opt-out page at www.google.com/privacy_ads.html or the Google Analytics Opt-out Browser Add-on at https://tools.google.com/dlpage/gaoptout/

Advertising industry opt out tools. You can also use these opt out options to limit use of your information for interest-based advertising by participating companies:

• Digital Advertising Alliance for Websites: outout.aboutads.info

 

• Network Advertising Initiative: optout.networkadvertising.org

Platform opt-outs. Some advertising partners offer opt-out features that let you opt out of use of your information for interest-based advertising.
 

Updating your social media settings. To stop disclosing your information to Facebook and other social media platforms with whom we permit you to connect your account, please modify your privacy settings on those platforms.
 

Note that because these opt out mechanisms are specific to the device or browser on which they are exercised, you will need to opt out on every browser and device that you use.

Do Not Track. Some Internet browsers can be configured to send “Do Not Track” signals to the online services that you visit. We currently do not respond to “Do Not Track” or similar signals. To find out more about “Do Not Track,” please visit http://www.allaboutdnt.com.

 

How often will we update this Cookie Policy?

We may update this Cookie Policy from time to time in order to reflect, for example, changes to the cookies we use or for other operational, legal or regulatory reasons. The date at the top of this Cookie Policy indicates when it was last updated. If we make material changes, we will alert you by updating the date of this Privacy Policy and posting it on our websites and mobile applications. If required by law to provide notification of changes in another way we will do so, such as by sending you an email, and/or by some other means.