Privacy Policy

Last updated: November 2026

Overview

The Screen Annotations apps do not collect any personal data. This policy covers the Screen Annotations apps for Mac and iPad, and this website. The apps have no user accounts, no login, no analytics, no telemetry, no advertising, and no crash reporting. Lumary Labs never receives your whiteboards, designs, or screenshots.

Permissions

On Mac, the app can ask for two permissions:

  • Screen Recording — Used when you capture a screenshot, and when an AI assistant you've connected through the MCP server takes a screenshot. Screenshots taken for an AI assistant are handed only to that assistant on your Mac.
  • Local Network — Used for live sync, to connect directly to your other devices.

The Mac app does not request Accessibility or Input Monitoring access. The keystroke display shows keys you press while Screen Annotations is active for a few seconds, and never logs, saves, or transmits them.

On iPad, the app can ask for one permission: Local Network, for live sync. Photos and files are added through the system photo and document pickers, which only give the app the items you choose.

Data Storage

  • Preferences are stored on your device.
  • Whiteboards and designs, including their scenes, snapshots, and version history, are saved on your device. If you use iCloud sync, copies of your whiteboards and designs are also saved in your own iCloud (see below).
  • Documents and exports are saved where you choose with the system file picker. Exports made by an AI assistant on Mac are saved in your Pictures folder.
  • Screenshots you capture on Mac are saved in your Pictures folder or another folder you choose, and can be cleaned up automatically in Settings.
  • Keystrokes and pointer positions used by the presentation tools are held in memory only and are never written to disk or transmitted.

iCloud Sync

If you use Screen Annotations on more than one device with the same Apple Account, your whiteboards and designs can sync between them through iCloud. Sync is on by default and can be turned off at any time in the app's Settings.

  • Whiteboards and designs are stored in your private iCloud database using Apple's CloudKit. They are handled by Apple under your Apple Account and Apple's privacy policy.
  • Lumary Labs cannot see, access, or recover data in your private iCloud database.
  • Deleting a whiteboard or design in the app deletes it from iCloud as well. Synced items count toward your iCloud storage.
  • The app receives silent notifications through Apple's push service, so it knows when something has changed in iCloud.
  • Without an iCloud account, or with sync turned off, your whiteboards and designs are not sent to iCloud or to your other devices.

Live Sync

When your devices use the same Apple Account and can reach each other, what you draw on one can appear on the other as you draw it. Live sync follows the iCloud sync setting, so turning sync off turns live sync off too.

  • Your devices connect directly to each other, over your local network or a direct wireless link. The connection does not go through Lumary Labs or any server.
  • Connections are encrypted with a key kept in your private iCloud database and in your device's keychain.
  • On the network, a device announces itself only with a random ID. Its name is shared only with your own devices, after they have connected.

Network Connections

  • iCloud — used for iCloud sync and to share live sync's key between your devices.
  • Live sync — direct, encrypted connections between your own devices, as described above.
  • Link cards — when you add a link card, the app fetches that page's title and preview image directly from the website you linked. That website sees the request as it would from a web browser.
  • Pictures from web addresses (Mac only) — when an AI assistant adds a picture to a design from a web address, the app downloads it directly from that address.
  • Local MCP server (Mac only) — Screen Annotations runs a local HTTP server bound exclusively to 127.0.0.1 (localhost) for AI assistants running on the same Mac. It does not accept connections from other devices.

Third-Party Services

The apps contain no third-party analytics, advertising, or tracking code. Apart from the connections listed above, no data leaves your device.

AI assistants you connect through MCP are separate apps with their own privacy policies. Once connected, an assistant can read and change your whiteboards and designs, and can take screenshots of your screen. What it does with them, including sending them to its own servers, is covered by its policy, not this one.

If you have chosen to share analytics with app developers in your device's settings, Apple may share anonymous crash and usage data with us.

This Website

This website works differently from the apps:

  • Google Analytics — we use it to see how many people visit and which pages they read. It sets cookies, and Google receives details such as your IP address, browser, and the pages you view, under Google's privacy policy.
  • Google Fonts — the site's fonts load from Google, which receives your IP address when they do.
  • Cookies the site needs — the site sets a session cookie and a security cookie so that it works properly.

Nothing you do in the apps is sent to this website or to Google Analytics.

Children's Privacy

The Screen Annotations apps do not collect personal information from anyone, including children under the age of 13. Because the apps collect no data, no special provisions for children's data are necessary.

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be posted on this page and reflected in an updated date at the top of this document.

Contact

If you have questions about this privacy policy, contact us at contact@lumarylabs.com.