Legal

Privacy Policy

Effective September 26, 2026

Quantifies is a social life-logger: you write about your day, and AI turns what you wrote into stats you can track. This policy explains what Quantifies collects, how it is used, who can see it, and the choices you have.

Quantifies is made and run by Lucy Chen (“we”, “us”). This policy covers the Quantifies apps for iOS and Android and the website at quantifies.app. Using Quantifies is also subject to our Terms of Service.

The short version

1. Information we collect

Your account

What you post and do

Features you choose to use

Collected automatically

When the app or website talks to our servers, our hosting providers record standard technical information such as your IP address, device and app version, and the time of each request. We use it to run and secure Quantifies. We don’t use advertising identifiers, analytics or crash-reporting tools, or tracking across other companies’ apps and websites.

On our website

If you join the waitlist at quantifies.app, we collect your email address, the platform you use, and your phone number if you choose to give it. We use them only to tell you about Quantifies’ launch.

2. How we use it

We don’t sell your personal information, share it for targeted advertising, or use it to show you ads.

If you’re in the European Economic Area or the United Kingdom, we rely on these legal bases: providing the service you signed up for (contract); your consent for location, microphone, photo-library access, notifications, Oura, and post by text, which you can withdraw at any time; our legitimate interests in keeping Quantifies safe, secure, and working well; and compliance with the law.

3. Who can see what

Your profile, meaning your username and display name, is visible to everyone. For each post, you choose who can see it:

FeaturedEveryone, including on the main feed
PublicEveryone, on your profile and on stat pages
FriendsOnly people you’re mutual friends with
PrivateOnly you

4. AI processing

Quantifies uses Claude, an AI model made by Anthropic, to turn your posts into tags, categories, and numbers; to flag sensitive posts; to understand the goals you set; and to write insights about your stats.

To do this we send Anthropic the text of your posts (including private ones and posts you send by text message) and the goals you write. Insights are written from summaries of stats, such as counts, durations, and the names of the things you track, never from the text of your posts.

Anthropic processes this information on our behalf, and its commercial terms don’t allow it to train its models on it. AI makes mistakes, so treat tags, estimates, and insights as approximate. You can review and change tags before you publish.

5. Health and wellness information

Some of what you can log or connect can say something about your health: mood, energy, sleep, heart rate, activity, or estimated calories. We collect it only when you log it or connect your Oura ring. We use it only to show you your posts and stats, and we treat it like everything else you post: we never sell it, never use it for advertising, and never share it except as this policy describes. You can delete it at any time.

6. Service providers

These companies help us run Quantifies. They process information on our behalf, only as needed to provide their service to us:

If you sign in with Apple or Google, connect Oura, or follow a link to another service, such as our feature-request board, that company’s own privacy policy applies to what you share with it.

7. Other disclosures

Apart from the people you choose to share posts with and the providers above, we disclose information only:

8. Keeping and deleting information

9. Your choices and rights

Depending on where you live, including the European Economic Area, the United Kingdom, California, and other US states, the law may give you rights to access, correct, delete, or receive a portable copy of your information; to object to or restrict how we use it; and to withdraw consent. We honor these requests from everyone, wherever you live, and we won’t treat you differently for making one. You can also complain to your local data protection authority.

10. Where information is processed

Quantifies is run from the United States, and our servers are there too. If you use Quantifies from another country, your information is transferred to and processed in the United States, whose data protection laws may differ from yours.

11. Children

Quantifies isn’t for children under 13, and we don’t knowingly collect information from them. If you believe a child under 13 has given us information, email hello@quantifies.app and we’ll delete it.

12. Security

We protect your information with encryption in transit, access controls on our database and file storage, and by keeping service credentials on our servers rather than in the app. No system is perfectly secure, so we can’t guarantee that information will never be accessed without permission. If a breach affects your information, we’ll notify you as the law requires.

13. Changes to this policy

If we change this policy, we’ll post the new version here and update the effective date. If a change is significant, we’ll tell you in the app or by email before it takes effect.

14. Contact

Quantifies is operated by Lucy Chen. For questions or requests about your privacy, email hello@quantifies.app.