Airlock

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Privacy ​

Last updated 6 November 2026.

Airlock and its apps (Airlock Companion for Mac, Companion for Airlock on iPhone and iPad) collect nothing about you. The one exception is a problem report, and only when you write one yourself.

  • No accounts, no analytics, no tracking, no ads. The apps send nothing to me or to anyone else unless you send a problem report.

  • Your network only. Apart from problem reports, the apps talk to Airlock devices on your local network and to nothing else. They find them with Bonjour, which is why they ask for Local Network access.

  • Your files stay yours. Files you browse, upload, download, flash or back up travel only between your device and your Airlock. Airlock itself runs on your own Raspberry Pi; no copy goes anywhere else.

  • What the apps keep, on your device: the Airlocks they've seen (name, host name, port) and your settings. Deleting the app deletes them.

  • Problem reports, only when you send one. Report a Problem in the apps sends what you write to my support desk, which runs on ALIAS at help.getalias.support. Along with it go:

    • a screenshot of the app's own window, if you leave it on, after you black out whatever you don't want to send. It's redrawn as a new image, with no location or device details in it;
    • the app's version, the name of the screen you were on (such as "Airlock" or "Setup"), your OS version, how many airlocks the app can see and whether the demo is on.

    No airlock names or addresses, no file names or contents, no email address and no account. The desk knows you only by an anonymous id it makes when you first send a report, kept in your device's Keychain, which is how my answer finds its way back to you in the app. Reports are kept for a year after they're closed, and for two years if you never see the answer. Erase My Reports in About deletes them and the id, at the desk and on your device.

  • Links in the apps (the user guide, this site, GitHub) open in your browser, where those sites' own policies apply. This site is hosted on GitHub Pages; see GitHub's privacy statement.

Questions: open an issue on GitHub.