Privacy-First AI Email
AI email, without giving up
your inbox.
Most AI email tools process your messages on servers that store, analyze, and learn from your data. Swizero doesn't.
The privacy problem with AI email
AI-powered email is genuinely useful. But most implementations come with a catch buried in the fine print.
Full inbox access
Most AI email tools require full read access to every message you've ever received.
Content stored for improvement
Many services store email content on their servers to improve product features over time.
Broad terms of service
Terms of service often permit wide data use — including for training undisclosed models.
No transparency on data flow
Users rarely know which third parties see their email content or how long it's retained.
“The trade-off shouldn't be: AI help OR privacy. You should get both.”
Swizero's approach
A two-layer architecture that keeps email ranking private by design, and AI processing contractually zero-retention.
Email ranking stays on your phone
Swizero ranks your emails using local heuristic scoring on your iPhone. Your messages are evaluated for importance and surfaced as cards, without sending a single byte of email content anywhere.
AI summaries and drafts with contractual deletion
For AI summaries and draft replies, content is processed by frontier AI providers under strict zero-retention agreements. Content is processed and immediately deleted. Not stored. Not logged. Not used for training.
What “zero-retention” actually means
The term gets used loosely. Here is exactly how it works in Swizero.
Content is sent for processing
Your email content is transmitted to a frontier AI provider to generate a summary or draft.
AI generates the result
The provider processes the content and returns a summary, triage decision, or draft reply.
Content is immediately deleted
The provider deletes the email content after processing. No logs, no storage, no exceptions.
Contractual guarantee
Zero-retention is not a promise. It is a contractual obligation backed by our AI provider agreements.
Our commitments
These are non-negotiable. They guide every engineering and product decision we make.
No email content stored on Swizero servers
Your emails live in Gmail. Swizero processes them and discards any content immediately after.
No model training on your data
Neither Swizero nor its AI providers use your email content for model training. Ever.
No advertising or data selling
We earn revenue through subscriptions. Your inbox is not the product.
No automatic sending
Swizero will never send an email on your behalf. Every outgoing message requires your explicit tap.
Full account deletion on request
One tap removes all associated data. No dark patterns, no retention period games.
How Swizero works
A focused, finite email session. Built around your attention, not against it.
A bounded set of AI-ranked cards per session
Your most important emails, surfaced. No infinite scroll.
Swipe to act
Archive, delete, flag, or reply — one gesture per card.
Every action undoable
Swipe too fast? Undo anything before the session ends.
Nothing sends without approval
Drafts are suggestions. You decide what goes out.
AI that helps with your email.
Without the privacy trade-off.
Join the waitlist and try the only email app that gives you AI productivity without giving up your inbox.
No credit card required. iOS beta. Gmail required.