> ## Documentation Index > Fetch the complete documentation index at: https://docs.burakov.net/llms.txt > Use this file to discover all available pages before exploring further. # Privacy > What Lexiline stores, what it needs, and what it doesn't. Lexiline is a calm tool, and that extends to how little it asks of you. Here's what it keeps and why. ## What Lexiline stores To watch a topic even when your app is closed, Lexiline keeps your **topics** and their matched **timeline items** on the server, tied to your account. That's what lets a topic keep being watched across your devices and while your phone is asleep. Your relevance feedback (the thumbs-up / thumbs-down) is stored too, so your timeline stays tuned to what you meant. ## One account, no separate sign-up Lexiline uses your single account across the Burakov apps — sign in once with an email code, no password to manage. The same account works on iOS, Android and the web, and your topics follow you between them. ## What it needs, and what it doesn't Used only to deliver your digest and any instant alerts. Decline them and the app still works — you just read the timeline when you open it. Pro is billed through the App Store, Google Play, or the web billing provider. Lexiline never sees or stores your card details. Reading candidates for meaning and writing digests happens on the server. It works on the public content it's checking against your topics — not on anything private about you. There's no advertising profile and no engagement scoring. Lexiline shows your matches in time order — that's all it's built to do. You stay in control: edit or delete any topic at any time, and deleting a topic clears its items from your timeline.