Calendar
See events from your notes, repeating events and Google Calendar together in month and week views.
Notes, tasks and calendar in one
Just write it down.
Tembox sorts it out.
Type a line in your notes, add one symbol, and it becomes a task, an event, or a reminder. Calendar, habits, timer and budget, all in one app.
Six apps, now one
- Calendar
- Tasks
- Notes
- Habits
- Timer
- Budget
01 — Notes
No forms to fill.
Just one line.
Write in today’s note as things come to mind, then add a symbol at the end of a line. It shows up on your calendar and task list right away. The line and the task stay linked, so checking off one checks off both.
Write this
Book the dentist !
Get this · INBOX
Pick a status — the line gets a checkbox and lands in your Inbox
Write this
Team sync @9/26
Get this · CALENDAR
@9.26 (Sat) — added to your calendar
Write this
Take meds %15:00
Get this · REMINDER
Reminder at 15:00, with a countdown on the line
Write this
☐ Review the mockups #TEMBOX
Get this · PROJECT
The task moves onto the TEMBOX project board
Write this
Taxi $ → Expense → 8.40
Get this · LEDGER
$8.40 logged as today’s spending
02 — Flow
Plan. Focus. Look back.
- 01Plan
Pick today’s work from your notes and calendar, then put it in order on a board.
- 02Focus
Start the timer and work on one thing. The time you spend is saved on that task.
- 03Look back
What you finished, your habits, sleep, mood and spending, all kept as a record of your day.
03 — Features
Everything your day needs,
in one place.
Project boards
Projects, sections, tasks and subtasks. Move cards across a kanban, track progress, and invite others to work with you.
Habits
Check off daily habits on a terminal-style home screen and watch your streaks grow.
Focus timer
Pomodoro or free-running. Every minute you focus is saved on the task.
Daily log
Sleep, mood, spending and journal. The scattered numbers of your day, gathered by date.
Make it yours
Three presets, light and dark modes, and your own accent color. Rearrange the screen with modules.
04 — Your data
Your day stays
on your device.
- Saved on your device first
Everything you write is saved in your browser (IndexedDB) instantly. No waiting on a server.
- Sync only if you want to
Sign in to see the same day on your laptop and phone. If you don’t, nothing leaves your device.
- Works with your AI assistant
Connect the MCP server and assistants like Claude can read and organize your tasks, notes and projects.
05 — Questions
Questions
Is it really free?
Yes. Every feature works without signing up or paying.
Do I need an account?
No. Open the app and start writing. You only need to sign in if you want your data on more than one device.
Where is my data stored?
In the browser you’re using. If you sign in and turn on sync, a copy is saved to the server so your devices stay in sync. You can export everything from Settings at any time.
What language is the app in?
The app is in Korean for now. Dates, times and amounts written as numbers (like @9/28 or %15:00) work in any language.
Does it work with Google Calendar?
Yes. Once connected, your Google Calendar events show up on the Tembox calendar. You can also export Tembox events as an ICS file.
How do I connect an AI assistant?
Tembox comes with an MCP server. Connect it to an assistant that supports MCP, like Claude, and you can create tasks, read notes and organize projects just by chatting.