Sankara Ntumy

Founder building at the intersection of product thinking and AI. I've spent years in product management watching brilliant people build things nobody wanted — so I'm building the tool that stops that from happening. Currently building Buildworthy in public. Based in Bangkok.

Social Links

You can reach me on the following social media accounts.

Things I'm working on

Buildworthy
Buildworthy is an AI-powered validation tool for SaaS founders and product teams. It maps your riskiest assumptions, designs a real-world experiment for you to run, tracks your results, and gives you a Buildworthy Score — a clear, evidence-based verdict on whether to build, pivot, or kill your idea. Unlike every other validation tool, Buildworthy doesn't stop at an AI report. It pushes you toward a real payment signal — because interest is cheap, and the only assumption that matters is whether someone will pay. Currently pre-launch. Waitlist open at getbuildworthy.app/ih
In Validation

Recent activity

I used my validation tool to validate itself — here's the full experiment

I used my validation tool to validate itself — here's the full experiment

I used my validation tool to validate itself — here's the full experiment

Lessons From Year 1 Build in Public

Seeking Validation: Your Feedback Matters for ReplyMind.

Grow Together! Let's curate a list of useful books and podcasts