Validation · 2026-02-01

How Demand Sonar Helped a SaaS Founder Find an Untapped Feature Gap

A micro-SaaS founder in the “email verification” space felt stuck. The market seemed mature. DemandSonar’s Competitor Vulnerability Map revealed a specific gap: “real-time email verification for cold outreach tools” had a 82 Demand Score and zero strong incumbents. He built an API integration for a popular cold email tool, priced it at $29/month, and within 4 months had 700 customers. The feature gap was hiding in plain sight, buried in competitor reviews saying “wish this worked inside my outreach tool.” AI excavated it. [Find your feature gap →]

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