this+that

Name: this+that
Author: Jeff Reynar

Under review

Clears inbox noise and ships the work it creates

Turns team messages from Gmail, Slack and Teams into owned tasks and a self-updating company knowledge base for founders, sales leaders and ops heads, with changes approved before they land.

Built by Jeff Reynar · Artificial Intelligence · AI Agent · Paid

Coming soon on Launch Llama Tools

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Jeff Reynar (Joined Nov 2026)

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Turns team messages from Gmail, Slack and Teams into owned tasks and a self-updating company knowledge base for founders, sales leaders and ops heads, with changes approved before they land.

this+that demo video

About

The Brain stores your company's operational knowledge, such as pricing, playbooks and customer context, and workflows read from it before acting. When a workflow learns something new, it proposes a Brain update that a team member approves. Requests found in messages become DoBox tasks with owners and due dates, and workflows can draft replies, send email, schedule meetings and update tools like Notion, Trello and HubSpot.

Competitors: Fyxer, Viktor

Follow this+that: X (Twitter) · LinkedIn

Key Features

Turns requests in Gmail, Slack and Teams into tasks with owners and due dates
Delivers proposes Brain knowledge updates from new messages for your team to approve
Runs workflows such as drafting quotes and reissuing invoices using Brain context
Builds a contact address book automatically from your connected channels
Drafts, sends and forwards email, and books or moves meetings around calendars
Updates Notion, Trello and HubSpot records as part of approved workflows

Use Cases

Turning a billing address change posted in Teams into a reissued invoice task with an owner and due date
Drafting a quote from pricing stored in the Brain after a sales request arrives by Gmail
Updating a shared launch timeline in Notion after a Slack message announces a new launch date

From the founder

Who it's for

“Founders and operators at small teams, roughly 20 to 100 people, where the work arrives by email, Slack, Teams and chat faster than anyone can track it. Requests, commitments and customer details get buried in threads, and nobody has time to copy them into the task list or the wiki, so things slip.”

Why I built it

“I'm Jeff Reynar, co-founder and CEO. I have a PhD in natural language processing from Penn, worked at Microsoft and Google, and at Facebook led a product team building knowledge management products, used internally and externally through Workplace. Most of what a company knows arrives in its messages and never gets written down anywhere else, so we built this+that to read those messages and turn them into tasks, knowledge and finished work.”

— Jeff Reynar, founder of this+that