Privacy policy
Last updated September 18, 2026
GlassFold is a macOS menu bar app that renders your screen as a pane of frosted glass while your MacBook's lid moves. It does not collect, store, or share any personal data. There are no accounts, no analytics, no advertising, and no tracking of any kind.
Data collection
GlassFold collects no data. The app makes no network connections, so nothing it does is ever transmitted off your Mac. In App Store privacy terms, this is a Data Not Collected app.
Screen Recording
The effect is a picture of your own screen. GlassFold asks for Screen Recording permission so that, the moment the lid starts moving, it can take one screenshot of the built-in display and draw it as the glass. That screenshot is held in memory only for as long as the effect is showing and is discarded when the lid settles. It is never written to disk, never uploaded, and never analyzed. Without the permission the effect cannot run, and the permission can be changed at any time in System Settings under Privacy & Security.
Lid angle sensor
GlassFold reads the lid angle sensor built into supported MacBooks to know when and how far the lid is moving. The reading is used only to drive the effect. The app keeps the last five seconds in memory for the Setup window's chart and stores nothing longer. Like most Mac apps, GlassFold writes a few diagnostic lines to the macOS system log, for example when the sensor is opened, and one of those can include a lid angle reading. Those entries stay on your Mac and are kept and expired by macOS, not by GlassFold.
Settings
Your preferences, such as eye position, the trigger threshold, and which lid directions play the effect, are stored on your Mac in the app's private container. Deleting the app removes them. Like other app data, they may be included in your own backups, such as Time Machine, which are covered by Apple's privacy policy rather than this one. Turning on Launch at login registers GlassFold with macOS as a login item and stores nothing else.
Third parties
GlassFold uses no third-party services, SDKs, analytics tools, or advertising frameworks. No data is shared with anyone because no data ever leaves your Mac.
This website
glassfold.app sets no cookies and runs no analytics or tracking scripts. The site is served by Cloudflare, which keeps aggregate request logs, such as which files were downloaded and from which country, as part of hosting it. Those logs are covered by Cloudflare's privacy policy. I only use them to count downloads.
Changes to this policy
If a future version of the app changes how it handles data, this policy will be updated here before that version is released.
Contact
If you have questions about this policy or the app, write to support@azaleski.com.