this+that vs Missive
A shared inbox to reply together, or an AI layer that does the work.
Missive is a good collaborative inbox. Your team triages, discusses, and replies to messages side by side, with internal chat right next to the thread. this+that starts from the work itself: it reads everything across your channels, pulls out the real tasks, and runs the busywork on its own, so the follow-through happens without anyone reading every thread.
A place to reply together vs an assistant that does the work
Missive does real things well. It puts team email, shared inboxes across many accounts, and built-in chat next to your conversations, so a team can decide and reply together in one fast, clean client. The collaboration is the point, and it’s excellent at it. Missive also has an AI assistant that drafts and helps you search. But the work is still driven by people reading threads. this+that’s built for a different job. It treats Gmail, Outlook, Slack, Teams, Google Chat, and WhatsApp Business as one stream of incoming work, extracts the tasks and commitments buried in those messages into DoBox, and runs workflows that handle what comes next. If your team wants the best way to discuss and reply to messages together, Missive is hard to beat. If you want the work that comes from those messages to happen on its own, that’s what this+that is for.
Feature by feature
How the two products compare across the things that matter most.
| Topic | Missive | this+that |
|---|---|---|
| Core use case | A collaborative inbox. Teams triage, discuss, and reply to shared conversations together in one client. | An AI work layer that pulls the real tasks out of your messages and runs the busywork on its own. |
| Team collaboration | A genuine strength: real-time internal chat next to each thread, plus shared drafts, assignment, and comments. | Coordination happens on the work itself. Shared DoBox tasks have owners, due dates, priorities, and @mention comments. |
| Channels | Email, plus chat channels like SMS, WhatsApp, Messenger, and others routed into shared inboxes for replies. | Gmail, Outlook, Slack, Teams, Google Chat, and WhatsApp Business read as one stream of incoming work. Instagram and Messenger are coming soon. |
| Multi-account client | Strong. Many email and shared accounts in one clean, fast workspace. A real strength. | A unified inbox across your connected channels, focused on surfacing the work rather than managing many mailboxes. |
| Task extraction | You can assign and discuss a conversation, but the inbox doesn’t pull the tasks out of what the message says. | DoBox reads every message across channels and surfaces the requests, decisions, commitments, and deadlines as tracked tasks. |
| Workflow automation | Rules route, label, and assign incoming conversations, and integrations connect other tools. Both start at Productive, so the Starter tier has no automation. | Describe an automation in plain language and it runs: conditional logic, loops, sub-agents, and a broad action set. |
| AI assistant | AI that drafts replies, summarizes threads, and helps you search. Useful inside the inbox. | AI drafts and answers grounded in the Brain, plus AI decisions used as steps inside workflows. |
| Knowledge layer | No persistent knowledge layer that grounds the AI across your work. | The Brain is a knowledge layer with version history that grounds drafts, answers, and workflows. It doesn’t yet auto-update from your message stream; that’s coming. |
| Integrations | A set of integrations for CRMs, task tools, and chat channels routed into the inbox. | Open MCP standard: connect GitHub, Jira, Notion, HubSpot, or any tool with an API, including inside workflows. |
| Security | Further along on compliance: SOC 2 Type II per their site. | SOC 2 Type I as of July 31, 2026, with Type II underway, so Missive is still ahead of us here. Your data stays in AWS, encrypted, and employees read your content only with your permission or for emergency support, and that access is temporary and logged. |
| Pricing | $18 per user per month on Starter, which caps at five users, $30 on Productive up to fifty, and $45 on Business with unlimited users. Annual takes 20% off, bringing those to $14, $24 and $36. 30-day trial, no card. | Free for 30 days. Then $35 per user per month, or $29 billed annually. |
- The real-time collaboration is the heart of it. Internal chat sits next to each conversation, so a team can talk through a reply and send it without leaving the thread.
- That chat lives alongside email, which spares you the trip to a separate messenger just to agree on what to say.
- One workspace holds shared inboxes spanning many email and chat accounts.
- Experienced teams enjoy the day-to-day feel: the multi-account client is clean and fast.
- Assignment, shared drafts, and comments keep collaborative replying smooth.
- And the AI assistant drafts replies and helps you search inside the inbox.
- Every message is scanned for the work inside it, so requests, commitments, and deadlines land in DoBox instead of staying buried in a thread.
- Then workflows act on what was found. Describe an automation in plain language and it runs with conditional logic, loops, sub-agents, and a broad action set.
- Grounding it all is the Brain, a versioned knowledge layer that keeps drafts and answers in step with how your team actually works.
- Slack, Teams, Google Chat, and WhatsApp Business come in alongside email as one stream of incoming work.
- Through open MCP, you can connect GitHub, Jira, Notion, or any tool with an API, including as steps inside a workflow.
- The result is a bundle rather than a client: a universal inbox, AI for tasks, and AI for automation in one product.
What is Missive?
Missive is a collaborative inbox for teams. Each email thread becomes a conversation your team can discuss internally, assign, and reply to together, including live co-drafting of a single reply. It goes beyond email into SMS, WhatsApp and social channels, which makes it one of the broader shared-inbox products for teams handling customer messages across several surfaces. It is mature, well built, and the collaboration model is the best part of it.
How much does Missive cost?
Missive is $18 per user per month on Starter, which caps at five users, $30 on Productive up to fifty users, and $45 on Business with unlimited users. Annual billing takes 20% off each, bringing them to $14, $24 and $36. There is a 30-day trial with no card required. The seat caps are worth checking before you commit, since crossing five or fifty users moves you a whole tier rather than adding a seat. this+that’s free for 30 days.
Who should choose Missive?
If the job is a team replying to shared inboxes together, Missive is excellent and more mature at it than we’re. The internal discussion threading, assignment and live co-drafting are strong, and the multi-channel coverage for customer messaging is broad. Support and operations teams whose day is answering shared mailboxes should look at Missive first.
Looking for a Missive alternative?
The reason is usually that collaboration isn’t the bottleneck. Missive helps a team reply together; it doesn’t read the messages and decide what needs doing. this+that extracts the requests, commitments and deadlines out of every connected channel into tracked tasks with assignees and due dates, then runs workflows triggered by the message arriving. If your problem is that things get missed rather than that replies need coordinating, that’s the difference.
See what's waiting in your inbox
Connect your inbox and this+that starts reading it. The tasks, follow-ups, and open commitments buried in your messages become tracked work, and what your team knows starts collecting in one place.
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