Jocelyn

Privacy policy

Last updated October 3, 2026

Jocelyn curates AI news developments on jocelyn.app and through the Telegram bot @jocelynapp_bot. This page explains what we collect, why, and how to have it deleted. We don't sell or share personal data, and we don't use it for advertising.

Telegram bot

When you start the bot in a private chat, or add it to a group or channel, we store:

  • the chat's Telegram ID and type (private chat, group or channel);
  • the chat's name as Telegram provides it: the group or channel title, or, for a private chat, the name on your Telegram profile;
  • whether the chat is subscribed, and when it subscribed or unsubscribed;
  • which stories have been sent to the chat, so the same story is never sent twice.

We only read messages that are commands to the bot (such as /start and /stop) and don't store them. In groups and channels the bot receives commands sent to it, not your conversations.

We use this data only to deliver news to the chats that asked for it. Sending /stop, blocking the bot, or removing it from a group or channel stops all messages.

Website

jocelyn.app uses Vercel Web Analytics to count page views. It doesn't use cookies and doesn't identify individual visitors. The site has no accounts and stores nothing in your browser.

News processing

Stories are collected from publishers' public feeds and pages, then summarized and labeled automatically by AI services (TypeSafe and Cloudflare Workers AI). Only the news content is sent to these services, never information about you or your chats.

Where data is stored

Data is stored with Cloudflare (database and processing) and Vercel (website hosting). Telegram also handles messages under its own privacy policy.

Deleting your data

Email support@jocelyn.app with your Telegram username or the name of the group or channel, and we'll delete its subscription and delivery history. Questions about this policy go to the same address.

Not investment advice

Jocelyn's summaries and stock-impact labels are generated automatically and are for information only.