Privacy Policy
Your flow and size inputs never leave your browser. We couldn't see them if we wanted to. Here is exactly how that works.
Last updated: June 11, 2026
The Short Version
Your inputs stay in your browser
The fit and absorbency tools run entirely on your device. Your flow, hip measurement, and answers are never transmitted to us or anyone else.
No account required
Every fit feature works without signing up. No email gate, no quiz funnel.
No ad-tech on tool pages
No advertising pixels, no session recording, no third-party trackers on any page where you enter information about your body.
Clear your data in one click
Anything saved for convenience lives in your browser's own storage. You can wipe it instantly; it was never on our servers to begin with.
1. What the tools do with your inputs
When you use our size or absorbency tools, the brand data tables are downloaded to your browser as part of the page, and the matching runs there, on your device. Your inputs (your flow description, your hip measurement, the sizes you select) are never sent to our servers, never put in a URL, and never shared with any third party. There is no server-side record of what you entered, because no server is involved in computing your answer.
If a tool offers to remember your inputs between visits, that uses your browser's local storage on your device. A “clear my data” control removes it. We cannot read another visitor's local storage, and we keep third-party scripts off tool pages so nothing else can either.
2. What we do collect (and what we deliberately don't)
Aggregate page statistics. We count page views and outbound clicks in aggregate (which pages are read, which retailers get clicked) without advertising identifiers, and without any body data attached. These counts tell us which comparisons help people; they cannot reconstruct what any individual entered.
Email, only if you give it. If you join the newsletter, we store the email address you provide and nothing else alongside it. Unsubscribe deletes it.
What we deliberately don't do: no advertising pixels (Meta, TikTok, or otherwise) on tool or recommendation pages; no session-replay tools anywhere; no remarketing audiences; no selling or sharing of any visitor data; no cycle tracking, symptom logging, or any feature that would require us to hold health information about you.
3. When you click out to a store
Some links to retailers are affiliate links: if you buy after clicking, the retailer pays us a commission at no extra cost to you (full details in the affiliate disclosure). Privacy-wise, two things happen when you click out: the retailer learns you arrived from our site (we configure your browser to send only our site name, not the specific page you were reading), and the affiliate link carries an anonymous click token for commission tracking. It never carries your flow, size, or anything you entered in a tool. What you do on the retailer's site is governed by their privacy policy.
4. Why we built it this way
Information about your period is health information. Companies that collect it carry obligations under the FTC's Health Breach Notification Rule and state health-privacy laws (Washington's My Health My Data Act, Nevada's SB 370, and others), and the femtech industry's record of leaking exactly this kind of data to advertisers is why those laws exist. Our answer is architectural: we never receive your health information at all. Nothing to breach, nothing to subpoena, nothing to sell, nothing to leak.
This page describes the architecture literally, and we treat that as a commitment: if a future feature would need to handle your inputs differently (for example, an optional assistant you type to), it will say so plainly at the point of use and ask you first, and this page will be updated before it ships.
5. Questions and corrections
Questions about this policy, or spotted something on the site that doesn't match it? Use the contact page. The architecture claim above is the standard we hold every release to.