The "Sent via Superhuman iOS" email signature has become one of the strangest flexes in the tech industry, but its influence is enduring, as the $30 per month invite-only email app continues to shape how a wave of personal productivity startups are building their business and product strategies. I had a chance to chat with Superhuman...The post Superhuman CEO Rahul Vohra on waitlists, freemium pricing and future products - TechCrunch appeared first on X TECH NEWS.