TrendGap analyzes over 100,000 app reviews weekly across G2, TrustPilot, App Store, Capterra, and Product Hunt to surface high-pain, low-competition niches before others discover them. It scores opportunities by market pain and provides ready-to-ship blueprints with tech stack recommendations and go-to-market playbooks. The tool is built for indie hackers, developers, no-code builders, and startup founders who want to skip guesswork and build products people actually need.