Zero is an AI-native email client built from scratch to put artificial intelligence at the center of how people read, write, and manage email. Founded in 2025 by Nizar Abi Zaher and Adam Wazzan, Zero went through Y Combinator's X25 batch and raised $2M from 1984 Ventures, Pioneer Fund, and YC. The product lives at 0.email and promises to cut the time knowledge workers spend on email by 70% through smart prioritization, thread summarization, AI-drafted replies, and conversational inbox search. With over 10,000 GitHub stars on its open-source repo, Zero is one of the fastest-growing AI email projects of 2025.
beehiiv is a newsletter platform founded by ex-Morning Brew engineers. It provides an all-in-one infrastructure for creators and publishers to build, grow, and monetize newsletters, websites, and podcasts. Unlike competitors like Substack, beehiiv does not take a revenue cut from creator subscriptions, instead monetizing through flat SaaS fees and its native ad network. It powers over 130,000 newsletters and generates over $30M in annual revenue.
Streak is a CRM platform built entirely inside Gmail, enabling sales, recruiting, fundraising, and support teams to manage pipelines, contacts, and workflows without leaving their inbox. Founded in 2011 by ex-Googlers Aleem Mawani and Omar Ismail through Y Combinator, Streak has grown to 750,000+ users and ~$10M ARR while remaining lean (~35 employees) and profitable — having raised only $1.9M and never pursued follow-on venture funding. It is Google's G Suite Technology Partner of the Year and one of the most capital-efficient CRM companies in the market.
After 20 years of immutable Gmail usernames, Google finally rolled out the ability for personal @gmail.com users to change their email address — keeping all data intact while converting the old address into a permanent alias. The feature launched in the U.S. in March 2026 after being spotted in Hindi support documentation in December 2025, marking the biggest identity infrastructure change in Gmail's history.