There is no Justyne cloud

What leaves your Mac, and to whom

Every outbound connection Justyne makes is to a service you signed up for, on a key or login you hold. In the order you will meet them:

• Google (Gemini), your microphone audio while she is awake, her spoken replies, the transcripts of both, and, while a voice session is open, a small downscaled picture of your screen every couple of seconds so she can see what you mean. Governed by your Google AI Studio account and Google's terms.
• Your agents, Claude, Codex or Grok, when you hand them a job. They run through the app you installed on your Mac, on your own login, and send what that app sends.
• The services she acts on for you, WhatsApp, Telegram, Gmail, shopping and food sites, and any site she drives in your Chrome. She acts as you, on your logins, and only when you ask.
• Optional, only if you use them: connected apps through Composio, and pairing your phone from outside your home network, which goes through a relay run by the original OpenMausBot project.
• Optional, off by default: anonymous usage analytics, which you can turn on in Settings.
• Updates, a check against the public release page on GitHub.

That is the whole list, apart from the beta sharing below. There is no Justyne server that sees your voice, your screen or your keys.

During the beta, the app shares your conversation transcripts and error logs with the developers so we can fix problems. Passwords, card numbers, keys and codes are masked on your Mac before anything is sent. Sharing is on by default, and you can turn it off in Settings, Account.

What stays on your Mac

• Chats and memory, in the app's data folder on your Mac.
• Keys, your Gemini key and any other keys, stored on your Mac and never sent to us.
• Screenshots, used for the question they answer and not saved.

Delete the app and its data folder and she remembers nothing. Uninstall by dragging the app to the Trash.

Security

The local web boundary. The app's backend listens on 127.0.0.1 only, so nothing on your network or the internet can reach it.

You approve what matters. Controlling your Mac, and risky actions such as paying or deleting, ask for your yes first. You can loosen that in Settings if you want her to work without asking.

Names are never guessed. A misheard name is the one silent failure that matters; when a contact match is not certain she asks instead of sending to the nearest match.

Signed and notarized. The release app is signed with an Apple Developer ID and notarized by Apple, so macOS opens it without a warning and verifies it has not been altered. Updates arrive over HTTPS from a signed release feed and are checked against their published hashes before they are installed.

Found something? Report it privately on GitHub. We read every report.

This website

This site is static pages on a content network, served under a strict content-security policy: fonts, scripts and styles come from this domain only, and nothing is loaded from a third party. It sets no cookies and uses no outside analytics service.

It does keep its own visit statistics, sent from your browser to this same domain and stored in our database. For each visit that means: your IP address and the approximate location the network maps it to (country, region, city and a rough coordinate), your browser and operating system family, screen size, language and time zone, the page that referred you, the pages you open, how long the tab stays active, which buttons and links you click (including the download buttons), and a random identifier kept in your browser's local storage so we can tell a returning visitor from a new one. Nothing in that record names you, and none of it is shared with or sold to anyone; it exists so we can see whether the site works and how many people install the app. Clearing your browser's site data removes the identifier. If you use the reach-out form, the name, email and message you type are stored with the same record so we can reply. If you press Talk to Justyne, your microphone audio streams to Google's Gemini Live service for the length of that conversation (at most three minutes) so she can hear and answer you; it goes on our key, not yours, and we keep only the session's length and the number of turns, never the audio or a transcript. The download buttons send you to GitHub Releases, which has its own privacy statement.

Terms

The software. Justyne is built on OpenMausBot and released under the Apache License 2.0. It is provided free, as is, without warranty of any kind. It acts on your accounts with the permissions you grant it; you are responsible for what you ask it to do and for the terms of the services it acts on for you. Use it only on a Mac you are entitled to control.

Your accounts. Gemini, Claude, Codex, Grok, Composio, Google, Meta, Telegram and every other service named here are separate products with their own terms and their own charges. Justyne is not affiliated with, endorsed by or responsible for any of them. Their names and marks belong to their owners.

Liability. To the fullest extent the law allows, the developer is not liable for any loss arising from use of the software or this site, including anything sent, deleted, purchased or scheduled on your behalf.

Changes. This page changes when the software does. The date below and the commit history are the record.

Last updated 27 September 2026