Privacy Policy

Jemma for macOS · Effective 8 November 2026

Jemma collects no data. It has no account, no analytics, no tracking and no advertising. Your notes never leave your Mac.

Your notes

• A note is the text you save with a double ⌘C, the Services menu, or a jemma://save link. Each note also records the time, the app it came from and, in Chromium browsers, the page's URL.
• Notes are stored only on your Mac, inside Jemma's sandbox container, in a folder only your user account can read. They are not synced or backed up by Jemma, and they are not sent anywhere.
• Jemma keeps at most 50 notes and deletes older ones as new ones arrive. You can delete a single note, clear all notes, or have notes deleted automatically after 1 to 30 days.
• When you export notes, Jemma writes a Markdown file to the place you choose. What happens to that file afterwards is up to you.
• To remove everything, clear all notes from the menu before deleting the app, or delete the folder ~/Library/Containers/com.liminalplanes.Jemma.

Input Monitoring

To notice a double ⌘C, Jemma asks for macOS's Input Monitoring permission. It uses a listen-only event tap that checks each key press for ⌘C and nothing else. It never records, stores or sends what you type, and it can't block or change key presses. You can turn the permission off at any time in System Settings › Privacy & Security › Input Monitoring.

Purchases

The free trial and the one-time purchase go through Apple's App Store. Apple handles payment and your Apple Account under Apple's Privacy Policy. Jemma only learns whether the trial or the purchase is active, and when the trial started. This is the only time Jemma connects to the internet, and it does so through Apple.

This website

This website has no cookies or analytics. It is hosted by Vercel and loads its fonts from Google Fonts, so both receive your IP address and browser details when you visit, under their own privacy policies.

Children

Jemma collects no personal information from anyone, including children.

Changes

If this policy changes, the new version will be posted on this page with a new effective date.

Contact

Questions about privacy: contact@liminalplanes.com