About HeartStack

HeartStack AI was built for founders who know their stuff but struggle to turn expertise into consistent, authentic content. We believe the best content comes from real conviction, not from prompting ChatGPT and hoping for the best.

The problem we solve

Most founders have 10x more insights than they publish. They think in conversations, voice memos, meetings, and late-night notes, but turning those into polished posts feels like a chore. Generic AI tools make it worse: they strip out personality and produce interchangeable content that sounds like everyone else.

HeartStack flips the model. Instead of starting with a blank prompt, you start with your raw thoughts. Our AI agent team extracts the real insight, drafts in your voice, scores for authenticity, and maps everything to your content strategy. The result: posts that sound like you on your best day.

The AI agent team

Four specialists, each with a clear job.

Mika

Mika

The Listener

Captures raw thoughts and extracts the real insight hiding inside.

Sage

Sage

The Strategist

Maps every post to your funnel. No wasted content.

Kai

Kai

The Writer

Drafts posts in your voice. Not ChatGPT's.

Reva

Reva

The Critic

Zero flattery. If it reads like AI slop, she'll tell you.