Terms of use
Last updated November 5, 2026.
Sunday (sunday.towers.app) is run by Duke Security Ltd., Israel, as one of the businesses on Towers. By signing in you agree to these terms.
What Sunday is
A task board with two lines, to do and done, an assistant you can talk to that changes the board for you, and an MCP server that lets Claude read and change your boards.
The assistant and Claude
What you write in the chat is read by an AI model (Claude, by Anthropic) so it can add, change, finish or delete tasks. It can get things wrong: every change shows on the board and in the chat, and the chat's Undo reverses it. When you connect your own Claude over MCP, that Claude acts with your access to every board you're on. Your MCP address works like a password: keep it private, and turn it off from Connect Claude if it leaks.
Price
- A board that's just you costs nothing.
- A shared board (one with anyone else on it) costs $5 a month for the whole board, everyone on it included. The board's owner pays by card through Stripe; we never see or keep card numbers.
- The plan renews each month until the owner stops it (Plan and sharing, in the board menu). It then runs to the end of the month already paid, and after that only the owner can open the board. No partial refunds for a month already started, unless the law where you live says otherwise. If something went wrong, write to us and we'll make it right.
Your boards
What you put on your boards is yours. People you invite see and change the boards they're on. The owner can take anyone off; anyone can leave.
Fair use
Use Sunday for your own work. Don't try to reach boards you're not on, overload the service, or resell access. The chat has a daily limit per board (generous for real work); the board itself keeps working past it.
Limits
We work to keep Sunday running and your data safe, but it's offered as is. As far as the law allows, our total liability is limited to what you paid us in the last 12 months.
If Sunday closes
We'll email at least 60 days ahead so you can copy your tasks out (Claude over MCP can read every board you're on).