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 is not an email assistant. It is an agent that reads Gmail, Outlook, Slack, and Teams, 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 is not to make email faster — it is 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 is 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. Does not read Slack or Teams messages. | Gmail, Outlook, Slack, Teams, 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. | AI draft replies and emails as workflow actions. Useful in automation context; not optimized for voice-matched manual composition. |
| 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 | Plain-language wizard: 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. 32 action types. Plain-language creation. IF/ELSE branching, 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. Genuinely 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 tool with an API. |
| Meeting features | Scribe v2: meeting transcription feature. | Calendar automation as workflow steps — RSVP, create events, reschedule, manage attendees across Google and Outlook Calendar. No transcription. |
| Pricing | $20/mo Plus, $40/mo Pro, custom Enterprise. 7-day free trial. | Separate subscription. Free tier available. |
- 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 and Teams 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: 32 action types with IF/ELSE branching, 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.
See what's waiting in your inbox
Connect your inbox and get a free analysis of the tasks, follow-ups, and open commitments this+that would surface.
Free to use · No credit card required