A workspace that reaches into your comms, or the inbox you run your day from.

Notion is best-in-class at what it does, and its AI has come a long way. The workspace still models your projects, knowledge, and processes in docs and flexible databases better than almost anything. On top of that, Notion AI now runs custom agents that read across connected apps like Slack, Teams, Gmail, and Drive, search your workspace and those tools together, trigger on a schedule or an event, write back to your databases, and even post replies in Slack. AI Meeting Notes transcribes calls and pulls out action items. A new developer platform opens all of it up to external agents. This is real, and we are not going to undersell it. We also will not pretend our task tool matches Notion's database depth for structured project management, because it does not.

What separates the two is where each one lives. Notion is a knowledge and workspace tool that now reaches outward into your comms to power its AI. this+that is the comms and work tool itself: the unified inbox your team lives in all day, where you read, triage, and reply across Gmail, Outlook, Slack, Google Chat, and Telegram in one place. Native communication is our core job, not a place our agents reach into. Every channel can draft and send, and every incoming message becomes a tracked, assignable task in DoBox without anyone retyping it. Plain-language workflows handle the follow-through, and the brain, a knowledge layer with version history, grounds the AI's drafts, answers, and workflow steps. It all ships as one product at one price, where Notion pairs the workspace with a Notion AI add-on. If your day is run from your messages, that is us. If your day is run from your workspace, that is Notion. Plenty of teams run both.

One recent move is worth noting, because it points the same direction we do. Notion is retiring its standalone Mail inbox on September 22, 2026, and folding email into the suite through Gmail (details here). Their reasoning is that more than half of Notion Mail users were already managing email without opening the inbox, so they are leaning on agents to run it instead. We read that as validation: the place-you-live inbox is fading, and agents doing the work is the future. The difference is scope. Notion's version is Gmail-only and Notion-centric, while we built this+that to be neutral and cross-channel, an inbox that is a command surface across every channel your team uses, not single-channel email triage. If your team is migrating off Notion Mail, we wrote a step-by-step guide.