What is Upstream?
Upstream is a messaging app for teams, built on top of email. It transforms your existing email inbox into a collaborative workspace designed for both humans and AI agents. With Upstream, you can organize your inbox, cut through the noise, and automate repetitive tasks like drafting replies and follow-ups—all in your natural voice. The app intelligently categorizes emails into smart folders such as Needs Reply, Follow Ups, Starred, Snoozed, Sent, Scheduled, Drafts, Spam, Trash, and custom labels. It also features an AI-powered assistant that learns your communication style to draft responses and suggest actions, helping you stay focused and productive.
Key features include a unified inbox that integrates with your existing email provider, smart notifications that reduce distractions, and collaborative tools that allow team members to share and discuss emails without leaving the app. Upstream also supports agent workflows, enabling AI agents to handle routine inquiries and escalate complex issues to human team members. This makes it ideal for customer support teams, sales teams, and any organization that relies heavily on email communication.
Use cases range from personal productivity to team collaboration. Individuals can use Upstream to manage their inbox more efficiently, while teams can leverage shared labels, comments, and assignment features to streamline workflows. The app is particularly useful for remote teams that need a centralized hub for email-based communication.
Technically, Upstream is built on top of standard email protocols, ensuring compatibility with Gmail, Outlook, and other email services. It uses advanced natural language processing to understand email context and generate human-like responses. The platform is secure, with end-to-end encryption for sensitive communications. Upstream offers a free forever plan with essential features, and premium plans for advanced AI capabilities and team collaboration tools. Backed by Y Combinator, Upstream is continuously evolving to meet the needs of modern teams.
Get started for free and experience the first inbox designed for humans and agents—less chaos, more energy for what matters.
Use Cases
Key Features
unified inbox smart folders AI powered drafting smart notifications collaborative email sharing agent workflows automated follow ups custom labels distraction reduction natural voice repliesWho is it for?
customer support teams, sales teams, remote teams, project managers, executives, small business owners, IT administrators
Similar Tools
Details
EVY is an AI-powered voice operating system for Mac designed to streamline team collaboration. By le...
freemium
Details
Sidekick is a versatile AI chat bot that combines multiple AI tools, assistants, and characters into...
Free trial
Details
CallGPT 6X gives you access to six powerful AI models in one platform, with intelligent smart routin...
Free trial
