Privacy policy
Updated
Fog Mail (Fog for short) is a Gmail app for Mac and iPhone, made by one person. It has no server of its own, no analytics and no ads. This page says what Fog reads from your Google account, where it is kept, and whom the app talks to.
What Fog reads from Google
With your permission, Fog uses Google’s APIs to read and manage your Gmail: messages, drafts, labels, and the settings it lets you edit (filters, the vacation responder and signatures). To learn of new mail right away, it also keeps a connection open to Gmail’s IMAP server.
It also reads your name, email address and profile picture to show the account you signed in with. It does not read your Google contacts or calendar.
Where it is kept
On your device only. Messages, the attachments you open and the search index are stored in the app’s own storage on your Mac or iPhone; the sign-in token is kept in the Keychain. Nothing is sent to me or to any server of Fog’s, and I, the developer, cannot see your mail.
How it is used
Only to show your mail and to do what you ask of it: read, reply, archive, label, search and the like. Fog does not sell, share or transfer Google user data, does not use it for advertising, and does not use it to train AI models.
Fog’s use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
Sender pictures
To show a picture beside each sender, Fog looks one up from your device: on Gravatar by a SHA-256 hash of the sender’s address, the icon on the sender’s website, and the brand logo the sender publishes (BIMI). These requests carry the sender’s domain or the hash, never your mail. Turn them off in Settings › Viewing › Show brand logos on Mac, or Settings › Viewing › Sender Pictures on iPhone.
Images and links in messages
Pictures inside a message load from the sender’s servers, as in any mail app; the Block remote images and Block trackers settings limit this. Links open in your browser. Unsubscribe uses the address the sender provides for it.
Contacts and Calendar on your Mac
If you allow it, Fog on Mac reads Contacts to suggest addresses, and Calendar to show your day beside an invitation. Both stay on your Mac. Fog on iPhone does not read either.
Updates
Fog on Mac checks dl.fog.fehey.com for new versions. That request carries the app version and macOS version, and no identifier. Fog on iPhone is updated through the App Store.
Nothing else
No analytics, no crash reporting, no tracking, and no third-party code besides Sparkle, which installs updates on Mac. This website keeps your language choice in a cookie and counts nothing.
Deleting your data
Remove an account in Settings › Accounts: Fog deletes its mail from your device, deletes its token and gives up its access to your Google account. Deleting the app removes the rest. You can also revoke Fog’s access at any time at myaccount.google.com/permissions.
Contact
Questions about this policy: eryouhao@gmail.com. If the policy changes, the new version appears here with a new date.