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GapFinder

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Stop building products nobody wants.

// The problem

Most founders burn 3–6 months validating by gut feel — lurking subreddits, skimming G2 reviews, building spreadsheets that never resolve into a clear answer. By the time they ship, they've either missed the window or built something no one asked for.

// The solution

GapFinder compresses that cycle into about three hours. It scans Reddit, app store reviews, G2, and competitor gaps, scores each signal, and surfaces ranked opportunities linked back to the exact thread, review, or tweet where someone asked for it. Every recommendation comes with a receipt.

// What makes it work

The decisions that actually matter.

Multi-source signal scan

Reddit, Apple App Store, Google Play, G2, Capterra, Trustpilot, and whois checks — all running as parallel scrapers coordinated through Apify, with cost logged per run.

Dual-LLM prompt routing

Every generation step (PRD, brief, outreach, landing copy) picks its model at runtime from a DB config. Expensive work stays on Claude; fast extraction runs on Gemini.

Receipts, not scores alone

Every opportunity is traceable. Click through to the actual Reddit comment, App Store review, or G2 quote that produced the signal — no black-box recommendations.

From signal to shippable

Once an opportunity is chosen, GapFinder generates a PRD, brief, content ideas, and landing page draft inside the same workflow, so validation and scaffolding happen in one session.

// The stack

Built on what ships fastest.

Next.js 16Prisma + PostgreSQLClaude Sonnet 4.6Gemini 2.5 FlashApifyStripeGoogle Cloud Run

Want something like this for your business?

I take on a small number of consulting and build engagements each quarter. If there’s a process, product, or system in your business that should compound but doesn’t, let’s talk.