this+that vs Jace AI
An AI assistant for your inbox, or an agent that works beyond it.
Jace AI is a genuinely capable AI email assistant. It learns your writing style, drafts replies with calendar and attachment context, and lets you build simple automations through a plain-language wizard. It supports both Gmail and Outlook, and Pro plans include MCP support. this+that’s not an email assistant. It’s an agent that reads Gmail, Outlook, Slack, Teams, Google Chat, and WhatsApp Business, extracts the work that lives inside those messages, and runs workflows to handle it.
Better drafts vs. less work left to do
Jace AI's thesis is that AI can make email faster and smarter: better replies, smarter context, automations that move data from your inbox to the tools you use. That thesis is sound, and Jace executes on it well for individual Gmail users. this+that's thesis is different: the goal isn’t to make email faster. It’s to reduce the number of things you have to manually track and do after reading messages. If you want a smarter Gmail assistant that drafts for you, Jace AI is a strong choice. If you want the requests, decisions, and commitments buried in your email and Slack to surface automatically and get handled across providers, across channels, as a team, that’s what this+that is built for.
Feature by feature
How the two products compare across the things that matter most.
| Topic | Jace AI | this+that |
|---|---|---|
| Core philosophy | AI assistant that makes email faster. Better drafts, smarter context, simple automations to push inbox data to other apps. | Delegate the work that follows messages. Extract tasks, run workflows, keep teams in sync, across whatever channels work arrives through. |
| Email provider support | Gmail and Outlook. Connect up to 2 accounts on the Plus plan. | Gmail and Outlook. Works with whatever your team uses. |
| Channels | Email only. Doesn’t read Slack or Teams messages. | Gmail, Outlook, Slack, Teams, Google Chat, WhatsApp Business, Google Calendar, and Outlook Calendar treated as one stream of incoming work. |
| AI writing | Learns your writing style and company context. Contextual drafts that reference attachments, calendar events, and Slack messages. Strong voice-matching capability. | Interactive AI reply button drafts from your direction and your brain, and draft-reply also runs as a workflow action. Lighter on trained voice-matching. |
| Task extraction | Extracts decisions, commitments, and owners from email threads. Not a full persistent task layer with due dates and assignment, but meaningful extraction is present. | Automatic. DoBox reads every conversation and extracts requests, decisions, follow-ups, commitments, and deadlines as trackable, assignable tasks. |
| Workflow automation | A plain-language wizard, where you describe a trigger and an action. Integrates with Slack, Notion, and Google Drive. Simple and accessible, but limited to a fixed set of integrations with no branching or logic. | Full workflow builder. A broad action set. Plain-language creation. Conditional logic, loops, sub-agents. Not limited to a fixed integration set. |
| Team features | Individual tool. No shared task view, no team workflows, no assignment features. | Shared task view, task assignment, workflow delegation to teammates. Work-level coordination across channels. |
| Context awareness | Analyzes email attachments, checks your calendar, and reviews relevant Slack threads when drafting replies. Useful for contextual composition. | Context used as workflow input. Attached files, calendar state, and linked conversations can inform routing and action decisions in workflows. |
| External integrations | Slack, Notion, Google Drive via the automation wizard. MCP support available on Pro plans. | Open MCP standard. GitHub, Notion, Jira, Dropbox, HubSpot, and any MCP-compatible tool. |
| Meeting features | Scribe v2: meeting transcription feature. | Calendar automation as workflow steps, including RSVP, create events, reschedule, manage attendees across Google and Outlook Calendar. No transcription. |
| Pricing | Plus $25/mo and Pro $50/mo billed monthly; $20 and $40 billed annually. Priced per account with a monthly credit allowance (10,000 on Plus, 20,000 on Pro) rather than per seat, so it’s not directly comparable with a per-seat price. Custom Enterprise. 7-day free trial. | Free for 30 days. |
- Voice-matched drafting is a standout feature: Jace learns your writing style and company context for replies that sound like you.
- Contextual awareness is genuinely impressive: attachments, calendar events, and Slack threads are all factored into draft composition.
- The automation wizard is accessible and requires no technical setup: describe what you want in plain language.
- Scribe v2 provides meeting transcription directly inside the tool, without a separate app.
- Clean, focused experience for individual users on Gmail or Outlook who want AI to make their inbox faster.
- Reads Slack, Teams, and Google Chat alongside email, all channels treated as one stream of incoming work; Jace reads email only.
- Task extraction as a persistent layer: every message across all channels is scanned and surfaced in DoBox with due dates, assignment, and priorities, not just decisions noted per thread.
- Workflow automation goes far beyond the wizard model: a broad action set with conditional logic, loops, AI decision steps, and sub-agents.
- MCP is available without a plan tier restriction, not limited to Pro.
- Built for teams: shared task visibility, assignment, and workflow delegation across channels.
What is Jace AI?
Jace AI is an AI email assistant for Gmail and Outlook. It learns your writing style and company context, then drafts replies that reference attachments, calendar events and relevant Slack threads, which makes its contextual drafting genuinely strong. It includes a plain-language automation wizard for simple trigger-and-action flows connecting Slack, Notion and Google Drive, and Scribe v2 for meeting transcription. MCP support is available on Pro plans.
How much does Jace AI cost?
Jace is $25 per month on Plus and $50 on Pro when billed monthly, or $20 and $40 billed annually, with custom Enterprise pricing. There is a 7-day free trial. The Plus plan connects up to two accounts. this+that is free for 30 days and $35 per user per month afterwards, or $29 annually.
Who should choose Jace AI?
If what you want is replies that sound like you, Jace is one of the better tools at it. The voice matching is a standout, and the contextual awareness when drafting, pulling in attachments, calendar state and related Slack threads, is more thoughtful than most. It also bundles meeting transcription, which we do not do at all. An individual on Gmail or Outlook who wants a sharper inbox will get a lot from it.
Looking for a Jace AI alternative?
Jace is built for one person's email. It does not read Slack, Teams or Google Chat as channels of incoming work, there is no persistent task layer with assignment and due dates, and the automation wizard is limited to a fixed set of integrations with no branching. this+that treats every connected channel as one stream, extracts assignable tasks from all of them, and runs workflows with conditional logic, loops and sub-agents. If the problem is a team's work rather than your inbox, that is the distinction.
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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