Tarsen vs Kan
Both are Kanban boards. The difference is what they are betting on. Kan's pitch is data ownership: it is open source, and you can host it yourself. Tarsen's pitch is that the board should tell you what to do today. Neither of those is a feature list, and which one matters more depends entirely on you.
Choose Kan if
There are real reasons to pick Kan, and pretending otherwise would waste your time.
- You want the source code. Kan is open source; Tarsen is not. If that is the deciding factor, it decides it.
- You need to self-host, on your own hardware or inside your own network.
- You would rather have a small, simple tool than a larger one, and you do not want AI features anywhere near your work.
Tarsen is hosted software. You can take your data out at any time as JSON or CSV, and put it back in the same way, but you cannot run it yourself, and that is a genuine difference rather than a detail.
Choose Tarsen if
- You want the board to answer “what should I do today?”, not just store cards.
- You want your AI assistant connected to the real board over MCP, rather than pasting cards into a chat window.
- You want a calendar and a timeline now rather than later.
- You want recurring cards that cannot pile up while you are away.
Where the products actually differ
Both present the familiar Kanban basics, and Kan's public pages highlight board visibility, members, Trello import, labels, filters, comments, activity logs and templates. Those are not the only things to compare. What follows is the split that matters to a team choosing between them.
| Tarsen | Kan | |
|---|---|---|
| Open source | No | Yes, their headline claim |
| Self-hosting | No | Yes, they publish on-premise options |
| Pricing shape | Free and Pro at £7 per seat/month | Free, Teams, Pro∞ and Enterprise plans |
| AI over your board | Ask Tarsen, plus an MCP server for Claude and others | Not advertised on the current product pages |
| Daily planning | Mission Mode plans your day against a capacity budget | Not advertised on the current product pages |
| Calendar view | Shipped | Not stated on the current product pages |
| Timeline / Gantt | Shipped | Not stated on the current product pages |
| Recurring cards | Shipped | Not stated on the current product pages |
| Import | Trello JSON and CSV | Trello import is advertised |
| Export | JSON and CSV, project or whole workspace | Open-source/on-premise ownership is their stronger portability story |
| Integrations | Not offered | Integrations listed as coming soon |
Kan facts were checked against kan.bn, kan.bn/pricing, and docs.kan.bn/introduction on 3 August 2026. Product pages change, so check those sources before you decide.
The part that is hard to put in a table
A Kanban board tells you what exists. It does not tell you what to do next, and on a busy board those are very different questions. That gap is the thing Tarsen was built around.
- Mission Mode picks a realistic set of cards for today, scored on due dates, priority, how long things are estimated to take and how much capacity you actually have.
- My Work and Inbox answer “what is mine” and “what changed” without you building a saved view for it.
- Ask Tarsen answers questions about the workspace and proposes changes you confirm before anything is written.
- The calendar shows the booked estimate on each day, so you can see a week is already full before you agree to more.
If none of that appeals, most of Tarsen's advantage disappears and the two tools are much closer than this page makes them sound.
Price
Tarsen is free for up to 3 members and 3 active projects, with the full board, the command palette, keyboard navigation, Trello import and 15 AI requests a day. Pro is £7 per seat per month, or £70 per seat per year, and lifts the project, member and saved-view limits, raises AI to 300 requests a day, and turns on email notifications, exports and the finer permissions.
Kan currently lists Free, Teams, Pro∞, and Enterprise plans, alongside open-source and on-premise options. Check kan.bn/pricing for current prices and terms rather than trusting a comparison page.
Something missing here? Email support@tarsen.co and we’ll write it.