This policy explains how Brontwell (operated by Om Fund Operations sp. z o.o., Poland) uses cookies and similar technologies on brontwell.app and in the Brontwell web app.
What we use
| Name | Type | Purpose | Duration | Consent needed? |
|---|---|---|---|---|
| brontwell_known | First-party cookie (functional) | Set when you sign in to the app; lets brontwell.app recognise you as an existing user and take you straight to the app instead of the marketing page | 12 months | No — functional (user-requested convenience) |
| Session/auth storage | First-party (strictly necessary) | Keeps you signed in; security | Session / [X days] | No — strictly necessary |
| Local app data (IndexedDB) | On-device storage | Stores your profiles and health data on your device — this is app functionality, not tracking | Until you delete it | No — strictly necessary |
| Product analytics (PostHog, EU) | — (no cookies, no persistent identifiers — memory-only) | Understanding how the app and this website are used, so we can improve them | not stored | No — nothing is stored on your device; you can still object anytime in Settings → Privacy |
We do not use advertising cookies, third-party tracking cookies, or cross-site tracking. We do not sell data collected by cookies.
Analytics
We use PostHog, hosted in the European Union, to understand how Brontwell is used — both the app and this website. Analytics run without cookies and without storing identifiers on your device; anonymous usage cannot be linked across visits. In the app you can additionally switch analytics off entirely at any time in Settings → Privacy.
Analytics events never include the content of your questions or your health data.
Managing cookies
You can delete or block cookies in your browser settings. Blocking strictly necessary cookies may prevent signing in. Instructions: Chrome, Safari, Firefox, Edge.
Changes
We will post any change here and update the date above. Material changes will be announced in the app.