When one of his co-founders, Vivek Sodera, urged him to fly to Hawaii for a business conference in 2017, Rahul Vohra hesitated. Superhuman, his AI-powered email startup, was still in its early days, and the trip sounded like a distraction he couldn’t afford. But on his first afternoon by the pool, he met Shishir Mehrotra, an engineer who had worked at Microsoft and Google and shared Vohra’s fascination with email productivity.
Vohra gave Mehrotra a demo, took his credit card, and signed him up on the spot. Mehrotra went on to invest in Superhuman and later co-founded the collaborative document platform Coda (originally called Krypton). When Grammarly acquired Coda in late 2024, Mehrotra became the CEO of the combined company. In July 2025, Grammarly acquired Superhuman and repackaged the suite under the Superhuman name.
Vohra founded Superhuman in 2014 to address a common frustration: the elusive goal of “zero inbox.” Managing an ongoing stream of newsletters, promotions, and job messages can feel like a second job. Research from McKinsey and Microsoft shows the average office worker about 120 emails a day and spends about three hours—about 28 percent of the work week—managing them.
“That’s 3 billion hours every day that go into reading and writing emails, or north of a billion hours a year that go into that — and I couldn’t find a bigger problem to solve,” Vohra told the Observer at Web Summit Vancouver earlier this month.
Raised in the UK, Vohra studied computer science at Cambridge. Before Superhuman, he founded Rapportive, a Gmail plug-in that displays social profiles and emails, which LinkedIn acquired in 2012. This experience sharpened his perspective on the shortcomings of major communication tools for power users. The gap was highlighted when Gmail’s product manager told him that their average user handles two important emails every day. “It really hit me how painful it was and how bad that was, and that Outlook and Gmail, these products, are designed for everyone, so no one,” Vohra said.
Superhuman sits on top of Gmail or Microsoft 365, replacing the traditional interface with a faster, keyboard-driven experience. It uses AI to check messages before users see them, draft responses to their voice, and trigger follow-ups when recipients don’t respond.
Backed by Andreessen Horowitz, First Round Capital and IVP, Superhuman was one of the few venture-backed email startups to reach meaningful scale, reaching a reasonable valuation of $825 million and $35 million in annual revenue by 2021.
In its early history, Superhuman Mail operated without artificial intelligence, prioritizing speed and efficiency. Unlike Gmail or Outlook, which download data on demand, Superhuman downloads everything locally to eliminate loading times. Its compact, keyboard-driven design and special features—like smart follow-up reminders and auto-read notifications—provide an intuitive experience overlooked by larger platforms. The rise of productive AI in 2022 and 2023, Vohra said, has repositioned the product.
Internal data shows users using Superhuman’s AI features manage 34 percent more emails and save more than four hours a week. Customers, including Spotify, Notion, OpenAI and Deel, emphasize their attraction to high-performance teams. In contrast, Microsoft said Outlook Copilot users save about 30 minutes a week. Vohra added that one major consulting firm identified Superhuman and ChatGPT as the only AI products being purchased at a significant scale.
An independent productivity app in the era of Big Tech AI and “vibe coding”
Since launching in 2014, Superhuman has built a loyal following among professionals willing to pay $30 to $40 per month for email despite free alternatives like Gmail and Outlook. That trade-off has become more contentious as AI tools make it easier to build custom software.
Vohra has been asking the same question for ten years: why pay for email? His response is rude. “I think there’s a big difference between free products, where it’s really a product…versus products that you’re actually paying to do a good job.”
The debate rages over the rise of “vibe coding,” or using AI to create software from plain-English information—Collins Dictionary’s word of the year for 2025. In one Reddit thread titled “Rebuild Superhuman in 2 hours and save that cool $40/month,” The developer described another barebones build using Claude Code. “I think we are completely done with monthly fees for most software,” the post read. In the end it was downvoted more than it was upvoted.
More experienced developers are skeptical. One 15-year veteran of building an email client with AI put it this way: “AI can run an email client in a weekend. That includes maintaining stable Gmail connections when credentials expire, preventing malicious codes embedded in emails from being executed, and building filters that reliably intercept phishing attempts.”
Meanwhile, competition is intensifying. Microsoft’s Copilot in Outlook and Google’s Gemini in Gmail bridge the gap in documenting and summarizing AI—and come integrated into existing workspaces. Corporate IT policies often restrict third-party tools, pushing users back to default clients without choice.
For those who stick with Superhuman, the appeal is less about the features than the cognitive burden. As one Reddit user put it, he’s paying $30 a month to hit “trying to fit the square pegs of free apps into the round holes of my information ecosystem.”
Today, the redesigned Superhuman suite costs $33 a month and includes four products: Superhuman Mail, Grammarly AI writing, Coda workspace, and Superhuman Go, a cross-platform AI assistant. Whether that price is justified ultimately depends on how much users value their time and whether they trust a specialized tool over general-purpose AI for the hours they spend in their inbox.
