Execution
is automated.
Decisions aren't.

Rex is the decision engine for founders raising money. It tells you the highest-leverage action right now and executes it for you.

Active in Gmail
InboxRex scanning
Sequoia CapitalRe: deck review
3d ago
a16zIntro request
1w ago
Benchmark CapitalFollowing up
9d ago
Founders FundQuick call?
5d ago

The problem

Founders don't fail from lack of tools.

Apollo automates outreach. CRMs track pipelines. None of them correct your decisions, reallocate your attention, or intervene in real time.

Rex sits above all of it. A behavioral decision engine that tells you what to do next, executes it with your approval.

01wrong investor prioritization
02delayed follow-ups
03chasing low-probability leads

How Rex runs your raise.

Process
01

Ingest

Rex pulls Gmail threads, classifies every investor contact, and maps your full pipeline from what's already in your inbox.

02

Score

Every thread gets a reply probability, decay score, and urgency rating. Rex ranks them globally, across your entire raise.

03

Decide

Rex surfaces the single highest-leverage action right now. Reply this investor. Ignore that thread. Shift attention here.

04

Execute

Email drafted in your voice, personalized to the thread. One tap to send. Rex handles timing, subject, attachment.

Early access

Run your raise with Rex.

Early access is limited to founders actively raising. Request a spot, we'll reach out.