Upstream

Name: Upstream
Author: Louis Lecat

For email users: Upstream uses AI agents to sort messages, draft replies, and handle grunt work so your inbox feels light and manageable.

Built by Louis Lecat · Artificial Intelligence · Productivity · Email · Freemium

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In category: #16 of 2035 · Artificial Intelligence

Product Hunt listing

Listing status

687upvotes

Community score

Louis Lecat (Joined Jun 2026)

Founder

Compared against 4 alternatives

Market comparison

Launched on Launch Llama Jun 21, 2026 · #2 of 41 that day

About

Upstream is an AI-powered inbox management tool that organizes emails and automates replies. It works on top of Gmail and helps professionals manage email overload without sending anything without their approval. The tool splits inboxes into categories so important emails get prioritized and nothing gets buried.

Launch Llama's Take

Based on Launch Llama data as of November 2026

Upstream has 687 upvotes, including the votes it received on Product Hunt, which ranks it #16 of 2,035 Artificial Intelligence tools on Launch Llama by upvotes, in the top 10%. It has been listed on Launch Llama since June 2026. 5 Launch Llama members have upvoted it and it has no reviews yet.

Unlike AgentMail, which gives every AI agent its own email inbox, Upstream works within an existing Gmail account and splits inboxes into categories. ForthWrite instead generates draft replies matching a user's writing style across Gmail and Outlook.

Upstream vs AgentMail

Upstream vs AgentMail: side-by-side comparison
	Upstream	AgentMail	Revo AI Email Assistant	ForthWrite
What it does	For email users: Upstream uses AI agents to sort messages, draft replies, and handle grunt work so your inbox feels light and manageable.	For developers: AgentMail gives AI agents dedicated email inboxes. Send, receive, thread, and reply autonomously with real-time webhooks…	For busy professionals: Revo AI connects your meetings, Slack, and CRM to write accurate email replies and handle next-step tasks.	For busy professionals: ForthWrite drafts email replies in your voice so you spend less time writing and more time on what matters.
Pricing	Freemium	Freemium	Not stated	Freemium
Free plan	Yes, free plan	Yes, free plan	Not stated	Yes, free plan
Category	Email	Email	Email	Productivity
Upvotes on Launch Llama	687	234	364	6
Listed on Launch Llama	June 2026	April 2026	February 2026	July 2026

See all Upstream alternatives

Key Features

Draft email replies that match your writing style and voice
Organize inbox into splits that match your workflow
Automatically follow up on important conversations at the right time
Pre-sort messages that need replies when you open your inbox
Move cold emails and newsletters out of the primary inbox

Use Cases

Teams wanting to collaborate on shared email threads and channels
High-performing teams and individuals managing large email volumes

Pricing

Free plan available forever. Pro costs $20 per member per month billed yearly. Max tier costs $60 per member per month billed yearly.

View Upstream pricing →

Upstream at a glance

01What it is: Upstream: For email users: Upstream uses AI agents to sort messages, draft replies, and handle grunt work so your inbox feels light and manageable.
02Pricing: Upstream pricing: Free plan available forever.
03Alternatives: Top Upstream alternatives on Launch Llama: Revo AI Email Assistant, AgentMail and ForthWrite.

Compare Upstream with Revo AI Email Assistant