Inbox splitting
Upstream organizes messages into Splits such as Primary, Needs Reply, VIP, and Noise so people can focus on what matters and move low-priority mail out of the way.
Upstream
ClaimUpstream is an email-based messaging app for teams that organizes inboxes, drafts replies and follow-ups, and supports shared conversation handling. Free Core plan.
Overview
Upstream is a messaging app for teams built on top of email. The site positions it as an inbox for humans and agents that reduces noise, organizes messages into splits, and helps people handle replies and follow-ups more quickly.
The product combines AI-assisted drafting with team collaboration features. It supports shared conversations, comments, channels, and multiple inbox workflows, while the pricing page shows a free Core plan and paid Pro and Max tiers for teams that need more AI control, collaboration, or enterprise-oriented support.
Core capabilities
AI reply drafting
The product drafts replies in the sender’s voice and tone, using thread context and past messages to tailor the draft to the conversation.
Follow-up prompts
Smart Follow Ups bring important conversations back at the right time and generate a draft when it is time to re-engage.
Team collaboration
Team pages show shared channels, private channels, comments, followers, and conversation sharing so teammates can collaborate without forwarding threads.
Email workflow tools
Pricing pages list options for multiple inboxes, inbox splits, snooze, send later, undo send, instant send, and a command palette for fast mail handling.
Configurable AI
The pricing page says AI features can be configured with prompts, custom voice and tone, and different model options, with support for OpenAI and Claude models in AI search.
Common ways to use Upstream
Daily inbox triage
Keep incoming mail organized by sorting messages into splits like Needs Reply, VIP, and Noise so urgent threads surface first.
Shared team handling
Let teammates view and discuss the same thread, add comments, and follow a conversation without forwarding long email chains.
AI-assisted responding
Draft replies and follow-ups in a consistent voice for sales, support, or other recurring conversations where response quality matters.
Multi-account email work
Manage multiple inboxes or accounts from one place when the same person or team handles more than one mailbox.
Project-based coordination
Use channels and private discussion spaces to route work by project or topic instead of keeping everything in a single inbox.
Pros and Cons
Pros
- Organizes mail into clear workflow buckets such as Primary, Needs Reply, VIP, and Noise.
- Drafts replies and follow-ups in the user’s voice and tone.
- Supports team collaboration through shared channels, comments, and conversation sharing.
- Offers a free Core plan, with paid tiers for heavier AI use and larger teams.
- Includes configurable AI prompts and model options on the pricing page.
Cons
- The public site does not provide a full integration list, so compatibility beyond the named Granola integration is unclear.
- Some details appear plan-dependent, such as unlimited AI drafts, private channels, multiple accounts, and enterprise security features.
FAQ
How do teams get started with Upstream?
Upstream is designed as an email-based messaging app for teams, so setup appears centered on using it with existing email workflows rather than replacing email entirely. The source shows it supports multiple accounts on Pro, but does not give a step-by-step onboarding flow.
Who is Upstream for?
The site presents Upstream for both teams and agents. The team page focuses on shared conversations, comments, and channels, while the agent page is meant for handling inbox work with AI drafting and follow-ups.
What does the AI help with?
Upstream drafts replies in your voice and tone, and it can also draft smart follow-ups. The pricing page says AI drafts can be customized by audience and powered by different AI models depending on plan.
What integrations are listed?
The source does not list a full integration catalog. It does mention a Granola integration and support for using Upstream across multiple accounts on Pro.
Is there a free plan or trial?
The pricing page shows a free Core plan, a Pro plan billed yearly, and a Max plan billed yearly with advanced security and AI features. It also mentions free trials and demo requests for higher tiers.
Quick Facts
- Category
- Messaging app for teams
- Platform
- Email-based web product with mobile access mentioned on Core
- Primary users
- Teams, individuals, and agents
- Pricing model
- Free plan plus paid yearly plans
- Notable workflow
- Inbox splits, AI drafts, smart follow-ups, and shared channels
- Source domain
- upstream.do