Doublezero

Let us manage your inbox so you don't have to.

Superfilter builds an inbox assistant that connects to Gmail and behaves like an executive assistant, handling timely emails, follow-ups, meeting coordination, and quick one-click replies. It aims to reclaim time for knowledge workers by managing tactical inbox tasks while you focus on strategic work; it offers early access via a waitlist for iPhone users.

Step through Doublezero’s homepage year by year — the pitch, the product and the design, as the web remembers them.

Each year opens the Wayback Machine capture closest to that date.