Upstream
The inbox designed for humans and agents
- Category
- SaaS & Productivity
- Launched
- June 19, 2026
- Stage
- Unknown
- Pricing
- freemium
- Founder
- Louis Lecat
- Website
- upstream.do
Upstream is an AI powered email client that reimagines the inbox experience. It uses agents to automatically sort messages into categories like "Needs Reply," "Follow Ups," and "Noise," so important emails never get buried. The AI drafts replies in the user's voice by learning their writing patterns, and it schedules follow ups at the right time based on context. The goal is to make email feel light, fast, and fun by handling the grunt work behind the scenes.
Discovered via
- Product Hunt Today · · Upstream: The inbox designed for humans and agents | Product Hunt
- Y Combinator Launches · · Upstream