Rahul Vohra is the Founder and CEO of Superhuman Mail.

Rahul sold his company to Grammarly in July of 2025, which had just acquired Coda in 2024. Following the acquisitions, the combined companies rebranded to Superhuman in October of 2025.

And it’s quietly one of the most underrated businesses that no one is talking about, with over $700 million ARR and 40 million Daily Active Users. Grammarly spent 15+ years building integrations with over a million other products, that they’re now layering more AI products on top of.

We talk about Rahul’s journey building Superhuman, go inside the acquisition, all the lessons he’s learned from selling two companies, why you should design your product like a video game, and we also re-visit his famous quantitative guide to finding PMF.