WhoSignup Reviews — Discover what people think of this product.

WhoSignup

Get Notified for High-Value Signups

WhoSignup instantly alerts you when someone from a valuable company signs up for your product. It enriches each signup with company data (size, industry, domain authority) and lets you set smart rules to only get notified for leads that match your ideal customer profile. Stop digging through dashboards or losing enterprise leads in your inbox. Get notified instantly and reach out while they’re still hot.

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More about WhoSignup

As a SaaS founder running multiple products, I realized I was missing when big companies signed up for my tools. By the time I noticed, it was too late to send a personal, timely message.

WhoSignup fixes that. It instantly alerts you when a signup comes from a valuable company so you can reach out while they’re still engaged.

The Problem

Every SaaS gets hundreds of free trials, but only a few are truly valuable. Without instant context, those leads get lost among the rest and the opportunity to start a real conversation disappears.

The Solution

WhoSignup enriches every signup with company data such as size, industry, and domain authority. You can set notification rules to only be alerted when a signup matches your ideal customer profile.

You’ll receive an instant email when that happens, helping you respond fast and close more deals.

Key Features

Instant alerts for signups that matter
Smart filters based on company data
Automatic enrichment of key business information
Simple REST API integration
Setup in under 5 minutes