Privacy Policy

Last updated: October 22, 2026

Overview

Periodly (https://periodly.pro) is a period calculator that runs entirely in your web browser. There is no user account system and no backend database. This policy explains exactly what little data is involved and how it's handled.

Data we do not collect

We do not collect, store, or transmit any health data you enter into the calculator — your last period date, cycle length, period length, and any past cycle lengths stay on your device and are used only to run the calculation in your browser. None of this information is sent to our servers.

Cookies & local storage

If you accept "Functional" cookies in our cookie banner, your last calculator inputs are saved in your browser's local storage so the form remembers them on your next visit. This stays on your device. See our Cookie Policy for the full list of cookies used.

Analytics

If you accept "Analytics" cookies, we may load a privacy-conscious analytics script (e.g. Google Analytics 4) to understand aggregate, anonymized site usage — never your calculator inputs. Analytics scripts are not loaded until you give consent, and we use Google Consent Mode v2 to keep storage denied by default.

Your rights (GDPR/CCPA)

Because Periodly does not create accounts or store personal data on our servers, there is generally no personal data for us to export or delete on request. If you are in the EU/UK or California and have questions about any data associated with analytics cookies, you can withdraw consent at any time via "Cookie settings" in our footer, or contact us at hello@periodly.pro.

Children's privacy

Periodly is intended for general audiences including teens researching their first period. We do not knowingly collect personal information from anyone, regardless of age, since no account or data submission is required to use the calculator.

Changes to this policy

We may update this policy as the site evolves. Material changes will update the "Last updated" date above.

Contact us

Questions about this policy can be sent to hello@periodly.pro or via our Contact page.

This policy is a template and has not been reviewed by a lawyer. Before launching, have it reviewed by legal counsel familiar with GDPR, CCPA, and the laws of your jurisdiction.