driftwood Book a demo
Customer story

Autosana got 14× the replies in week one

Autosana · YC S25 · AI agents for mobile QA

Founder-led outbound, under 1% replies

Autosana builds AI agents for mobile QA. Like most early-stage founders, Yuvan Sundrani ran cold outbound himself. He found the leads, wrote the messages, and sent them from his own accounts.

It mostly did not work. His self-reported reply rate was under 1%. Prospects who fit Autosana perfectly never answered at all.

What driftwood did

driftwood is an AI sales agent for cold outbound. For each prospect on Yuvan's existing list, the agent researched the company, then built a working demo of Autosana for their business: Autosana's agent running against the prospect's own product.

Every message went through human review before it sent. Nothing left the queue without approval. And every message went out from Yuvan's own account, LinkedIn or email, so replies landed where he already works.

The driftwood review queue: drafted messages waiting for human approval before they send

The review queue. A human approves every message before it sends.

The CTO who finally replied

One thread tells the story. A CTO at a company we will not name here had ignored Yuvan's outreach for 4.5 months. Yuvan's first message went out on February 26, 2026. It was never answered.

On July 9, the driftwood agent sent him one message. It opened with a real bug the agent had found on the prospect's own site, and attached a 19 second video of Autosana's agent catching it.

CTO @
Yuvan Sundrani · sent by driftwood

hey , found a bug on .

Still from the 19 second demo video of Autosana's agent catching a bug on the prospect's site 0:19
CTO @

send me a blurb + demos to and I'll forward to my team - best

The thread, as it happened. Identities redacted on purpose.

The CTO replied about 12 hours later. The call was booked for July 12.

The result

In week one, the same lead list that had returned under 1% produced 14× the replies. Same leads, same founder's account. Different messages.

14×
the replies, week one, same lead list
“amazing stuff, love the demo”
Yuvan Sundrani
Yuvan Sundrani
Founder, Autosana

See a demo built for your business

driftwood researches your prospects, builds a working demo of your product for their business, and sends from your own account. A human reviews every message first.

Book a demo