Last updated: 2026
Alpha Brain runs no advertising cookies, no ad networks and no cross-site tracking pixels. Almost everything the app remembers is kept in your browser's local storage on your own device rather than in cookies sent to a server. This page lists all of it.
We use the word broadly to cover cookies, localStorage, sessionStorage and browser permissions — any mechanism that stores information on your device.
| Key | Type | Purpose | Retention | Category |
|---|---|---|---|---|
| ab_cookie_consent_v1 | localStorage | Remembers your cookie choices so the banner is not shown again. | Until you clear it or change your choice | Strictly necessary |
| ab_theme / template preference | localStorage | Stores the selected visual template (Solaris / Nebula). | Until cleared | Strictly necessary |
| Watchlist keys | localStorage | Your pinned stocks, crypto pairs and on-chain tokens. | Until cleared or removed in the app | Functional |
| Price-alert keys | localStorage | Your alert targets, direction, repeat setting and sound preference. | Until cleared or deleted in the app | Functional |
| Layout / panel state | localStorage | Which panels are open, closed or restored, and the last selected asset. | Until cleared | Functional |
| Notification permission | Browser permission | Granted by you so price alerts can raise a system notification. | Managed by your browser or OS | Functional |
| Error report payloads | Network (no cookie) | Anonymous crash and runtime-error reports used to fix broken panels. | Rotated automatically in logs | Diagnostics |
Market and intelligence requests are proxied through our own server functions, so providers such as Finnhub, Crypto.com, DexScreener and GeckoTerminal do not set cookies in your browser. Two exceptions load directly from third-party domains and may set their own cookies under their own policies: the Product Hunt badge/image and Google Fonts. Details are in the Data Sources & Disclosures page.
Turning off functional storage means watchlists and alerts are not saved between sessions.
If we add a new storage key or provider we will update this table and re-ask for consent where the law requires it. Questions: xapp431@gmail.com.