Sellvance is a GTM experimentation platform for B2B SaaS teams still searching for product-market fit. Use it to validate an ICP, test an offer, or check demand for a feature by talking to real prospects directly.
Most cold email tools are built for volume. They show you a reply rate and leave you to guess what it means. Zero replies can mean nobody wants your product. It can also mean your emails never reached the inbox. Those two problems need opposite fixes.
Sellvance tells them apart. Every experiment gets a Signal Check with three verdicts:
Delivery. Did the emails actually arrive? Sellvance tests auto-replies against a measured baseline. Until delivery is confirmed, it won't let you read anything into the reply rate.
Interest. Is the positive reply rate above your threshold? You set it from your own unit economics, not from industry benchmarks.
Harm. Are unsubscribes telling you the message does more damage than good?
Each verdict tells you when the result is statistically clear, and when you need more sends.
A real case: Sellvance's own July 2026 outreach sent 337 emails across 13 campaigns and got zero replies. Signal Check failed the delivery verdict. The cause was a missing PTR record on the sending server. The zero looked like a verdict about the market. It was a verdict about a DNS record.
The goal is 100 emails that get real answers, not 1,000 emails that get a handful.
