Zeno privacy policy
Updated 11 Nov 2026
Who uses it
Zeno is a personal project. It works only for me, James Cronin, and only answers my own chat. It isn't offered to anyone else, and nobody else can sign in to it.
What it reads
With my permission, Zeno reads my own Gmail and Google Calendar to tell me about things like bills, deliveries, bookings, plans and emails still waiting on a reply. It also reads photos I send it. It only does this for me, in my own conversations with it.
What it sends
With my Face ID approval, Zeno can send an email from my Gmail. My phone shows the exact recipient and message first, and it can't send anything without my approval. It can't delete or change my email.
Where the data goes
My data stays on a small server I own. To understand and answer me, Zeno sends only the parts it needs to Anthropic's Claude API, and its replies reach me through Telegram. Those, and Google, where it comes from, are the only services that see my email or messages. A few lookups send only what they need, never my email: a rough location to Open-Meteo for the weather, and what to search for to the flight, shop and place lookup services it uses. Quick questions and routines go to a web search, with only the question, never my email. When I tap a Directions button, Apple Maps receives that event's address. It isn't sold, shared with anyone else or used for advertising.
How long it's kept
Zeno keeps a private log of what it did for me, and I can delete it at any time. I can also remove its access to my Google account whenever I like, from my Google account's security settings.
Google user data
Zeno's use of information received from Google APIs follows the Google API Services User Data Policy, including the Limited Use requirements.
Questions: email me. About Zeno.