Legal

Cookie Policy

Last updated: April 2026 · Effective: April 2026

Short version: Stelo uses only essential cookies and browser storage needed to make the app work. We do not use advertising cookies, cross-site tracking, or third-party analytics cookies. We will never sell your browsing data.

1. What Are Cookies?

Cookies are small text files stored on your device by your browser when you visit a website. They serve various purposes | from keeping you logged in to tracking you across the web for advertising. Stelo uses only the former.

In addition to traditional cookies, modern web apps also use browser storage mechanisms such as LocalStorage and SessionStorage. These work similarly to cookies but are stored locally on your device and are not automatically sent to servers with each request.

2. Cookies We Use

Stelo uses a minimal set of cookies, all of which are strictly necessary for the service to function. We do not use optional or preference cookies that require your consent.

Name	Purpose	Type	Expiry
`sb-auth-token`	Keeps you logged in to your Stelo account across sessions (Supabase authentication token)	Essential	7 days
`sb-refresh-token`	Refreshes your authentication session without requiring re-login (Supabase)	Essential	30 days
`stelo-locale`	Remembers your preferred language setting (EN, FR, ES, PT, DE)	Essential	1 year

3. Browser Storage (LocalStorage)

In addition to cookies, the Stelo web app uses LocalStorage to store preferences and cached data on your device. This data never leaves your browser unless you are syncing it to your account.

LocalStorage is used for:

Theme preference | whether you have selected light mode, dark mode, or a premium theme.
UI state | sidebar collapse state, last-viewed section, and other interface preferences.
Offline cache | a local copy of your habits and todos so the app loads instantly even without a network connection.

LocalStorage data can be cleared at any time by clearing your browser's site data for steloapp.io or app.steloapp.io.

4. What We Do Not Use

To be explicit about what we do not do:

No advertising cookies. We do not serve ads. We have no relationship with any ad network. There are no advertising tracking pixels or cookies on Stelo.
No cross-site tracking. We do not track you across other websites.
No third-party analytics cookies. We do not use Google Analytics, Mixpanel, or similar tools that set tracking cookies. Any internal analytics we use are server-side and do not involve cookies placed on your device.
No social media tracking pixels. There are no Facebook, TikTok, LinkedIn, or similar tracking pixels on Stelo.

5. Managing Cookies

Because all cookies used by Stelo are strictly necessary for the service to function, there is no cookie consent banner | you cannot opt out of essential cookies while continuing to use a logged-in session.

You can delete cookies at any time through your browser settings:

Chrome: Settings > Privacy and security > Clear browsing data
Firefox: Settings > Privacy & Security > Cookies and Site Data > Clear Data
Safari: Preferences > Privacy > Manage Website Data
Edge: Settings > Privacy, search, and services > Clear browsing data

Note that clearing cookies will log you out of Stelo. Your data is safely stored in your account and will be available when you log back in.

6. Changes to This Policy

We may update this Cookie Policy if we change the cookies or storage mechanisms we use. We will update the "Last updated" date at the top of this page and, for material changes, notify you via an in-app notice.

7. Contact

Questions about our cookie practices? Contact us at support@steloapp.io.