Last updated: 8 June 2026
This Cookie Policy explains how Prevy (“we”, “us”, “our”) uses cookies and similar technologies (such as browser local storage) when you visit prevy.app. It explains what these technologies are, why we use them, and the choices you have. Read it alongside our Privacy Policy.
Cookies are small text files placed on your device when you visit a website. They are widely used to make sites work, or work more efficiently, and to provide information to the site owner. We also use related browser storage technologies — local storage and session storage — which are not strictly cookies but serve similar purposes and are covered by this policy.
No.Prevy does not use any analytics, advertising, or behavioural tracking cookies. We don’t run Google Analytics, advertising pixels, or third-party trackers. The only data we store on your device is what’s needed to keep you signed in and to make the app work.
These first-party cookies are strictly necessary— the app can’t keep you securely signed in without them.
| Name | Purpose | Type & duration |
|---|---|---|
| prevy_uid | Identifies your authenticated session so you stay signed in. | First-party, HttpOnly. Expires after ~60 days. |
| prevy_session_email | Associates your session with your account for verification. | First-party, HttpOnly. Expires after ~60 days. |
We use your browser’s local and session storage to remember your work and preferences. This data stays on your device and is not a tracking mechanism.
| Key | Purpose | Storage |
|---|---|---|
| firebase:authUser:… | Keeps you signed in (set by our authentication provider, Firebase). | Local storage / IndexedDB |
| prevy_private_templates, prevy_workspace_projects, prevy_saved_built_in_templates, prevy_published_public_templates | Saves your designs, projects, and saved templates so they persist between visits. | Local storage |
| prevy-pricing-billing | Remembers whether you chose monthly or annual pricing. | Session storage (cleared when you close the tab) |
Some cookies may be set by third-party services when you use specific features. We don’t control these cookies; they are governed by each provider’s own policy.
| Provider | When | Purpose |
|---|---|---|
| Stripe | Only when you start checkout or manage billing (you are taken to Stripe). | Fraud prevention and securing the payment session (e.g. __stripe_mid, __stripe_sid). See Stripe's privacy policy. |
| Google (Firebase, Google Fonts) | When the app loads your media, fonts, or authenticates you. | Serving content securely from Google's infrastructure. |
| Unsplash | When background images are loaded from Unsplash's CDN. | Delivering images. See Unsplash's privacy policy. |
Most browsers let you view, delete, and block cookies and clear local storage through their settings. Because our first-party cookies are strictly necessary, blocking them will sign you out and prevent the app from working properly. You can manage browser storage at any time from your browser’s privacy or site-data settings.
We may update this Cookie Policy from time to time to reflect changes in the technologies we use or for legal reasons. When we do, we’ll revise the “Last updated” date at the top of this page.
If you have questions about this Cookie Policy, please get in touch.