Lab / Unknot · Being tested, not released
Three things
actually need you today.
Unknot is a mail client for Mac and iPhone where your mail never leaves your devices. It sorts every message on the device, writes you a calm one-page digest, and learns from every "wrong about this". There are no Unknot servers of any kind: mail goes straight between your device and your provider.
Your mail stays on your devicesSorted on deviceNo servers, no telemetry
Try it: triage and the digest
Five piles, one page, and you're done.
Every message lands in one of five piles: needs you, worth knowing, bulk, receipt or automated. The digest shows at most three things that need you. Star a sender to mark them as someone who matters, or tap "Wrong" to correct a message; your correction becomes a rule for that sender, and the digest updates at once.
Inbox
This demo runs the ordered rules Unknot uses where no on-device model is available, and as its test fixture: an unsubscribe header means bulk, then automated senders, then receipt words, then people you've starred, then urgent asks, then softer asks, and everything else is worth knowing. In the app, a model on your own hardware does the sorting: Phi-3.5 Mini on the Mac through MLX, and Apple's on-device model on iPhone. The headlines are the app's own.
How it's built
Nothing to send your mail to.
Mail stays put
The mail database has cloud mirroring switched off. Removing an account erases its local data, and there is nothing held elsewhere to delete.
Only sealed things sync
Your digest and triage actions move between Mac and iPhone through your own iCloud as AES-GCM ciphertext, under a key only you hold, recoverable with a 12-word phrase.
Corrections that stick
"Wrong about this" writes a rule for that sender at once, and a rule you set yourself outranks anything the model later thinks.
In the lab: Unknot is being tested and is not ready for release. A signed record of on-device classification is in progress and is not described here as a feature.