Privacy

Effective 19 October 2026

Zyz doesn't collect any data. There's no account, no analytics, no tracking and no server of mine. I can't see your lists, and I don't want to.

Your lists

What you put in Zyz is stored on your devices and synced through your private iCloud database. Files you share into Zyz are kept in Zyz's folder in your iCloud Drive. Both are tied to your Apple Account, and I can't see them. Apple's handling of iCloud data is covered by Apple's privacy policy.

On-device suggestions

On an iPhone or Mac with Apple Intelligence, Zyz picks an icon and colour for a new or renamed project from its title. That runs entirely on your device, and the title never leaves it. You can change the pick, or turn it off in Settings (Suggest project icons with Apple Intelligence).

Agents and the command line

The Mac's command-line tool and MCP server run locally and read the same data as the app. If you connect an agent such as Claude, what it does with your data is between you and that agent's provider.

Backups

If you choose a backup folder on your Mac, Zyz writes a copy of your data there, and nowhere else. Where it goes from there (Time Machine, a synced drive) is up to you.

Deleting your data

Your lists live only on your devices and in your iCloud. To delete them, delete Zyz from each device, then remove Zyz's data from iCloud storage in your Apple Account settings. Things you move to the Trash stay there for 30 days, or until you empty it. I hold no copy, so there's nothing on my side to delete.

This website

This site uses no cookies, no analytics and no third-party scripts or fonts. It's served by Cloudflare, which may keep standard request logs (such as IP addresses) for security and operations.

Questions

Write to hello@open-paren.dev. If you email me, I'll have your address and message, and use them only to reply. If this policy ever changes, the new version will be posted here with a new date.