Daymetric

macOS · iOS · local first

The day planner that's a text file.

todos.md and memory.md are the whole database. Add a line, save the file, and the app already knows what fits today and when you're done. No web view. Your folder stays yours. Fourteen days free.

Download for macOS See the format

Version 1.40.1 · universal (Apple Silicon + Intel) · macOS 14+ · signed and notarized · iOS in TestFlight

The Daymetric window on macOS, light mode: a finish-time readout and a load gauge over three lanes — today, tomorrow and backlog — filled with Northwind, Atlas and Ledger tasks carrying priorities, deadlines and notes; a line reading “you've moved ‘Call the accountant back’ 6 times.” sits under the date, and a task Claude has proposed waits above the lanes.
Daymetric on macOS. The finish time is when today's remaining work runs out, not a guess.

Your tasks

todos.md

A task is one line of text. That's the whole format.

No database, no export button, no proprietary format. Open the file in any editor and the app follows along as you type.

- [ ] Draft the metrics section | project: Northwind | effort: 45m | deadline: 2026-09-04 | priority: 1
project
Carries the weight you set once in memory.md.
effort
How long you think it takes. This is what makes a finish time possible.
deadline
Sorts ahead of everything else as the date closes in.
priority
1, 2 or 3. Beats the project's own priority when they disagree.

Two more tokens do the unglamorous work: defer: 2026-09-01 pushes a task out of today without deleting it, and carried: 4 counts how many times you've hauled it forward. Four is usually the app telling you something.


Your day

15:48

You get a finish time, not a wish.

Add up what's left, drop it into the hours you actually work, and you get the time today runs out. It moves as you clear things.

When it doesn't fit

When the work outgrows the day, the readout turns red at 9am rather than at 6pm. You still choose what gives — it will not quietly reshuffle your list to make the arithmetic work.

Calibration

Every finished task is logged with the time you finished it. Guess 30m on a project you reliably spend an hour on, and the estimate gets multiplied before it reaches the clock.


Your files

no lock-in

Nobody can revoke a text file.

Everything Daymetric reads and writes is plain markdown in a folder you already control.

Durable

Opens in TextEdit today. Opens in TextEdit in ten years.

Private

No analytics, no tracker, no crash SDK. Signed out, nothing leaves your disk.

Independent

If Daymetric disappeared tomorrow, your day wouldn't.

Sign in only if you want the same tasks on your phone. Nothing about the format changes either way.


Your agent

21 tools

Claude already reads your todos.md.

Daymetric ships its own MCP server and registers it with Claude Code, Claude Desktop, Cursor and Codex the moment you open the app. Nothing to configure. Say this:

what's on my list in daymetric?

  1. 01

    It reads todos.md and memory.md — the same files you edit.

  2. 02

    Anything it thinks of on its own lands as - [?], not - [ ].

  3. 03

    You accept or reject it in the app. Nothing reaches your day unseen.

  4. 04

    Turn it off and nothing breaks. The scheduler is plain Swift with no network calls in it — it behaves the same with no agent attached at all.

The Daymetric Ideas tab on macOS, light mode, showing a mermaid diagram rendered natively in the app's own dot-matrix grid — no image, no export.
An idea can carry a diagram — write plain mermaid, and flowcharts, sequence diagrams and state machines all draw in the same dot grid the app uses. No image, no export.
list_tasksget_taskadd_taskupdate_task_notescomplete_taskuncomplete_taskremove_taskadd_idearead_memoryread_done_logupdate_memoryset_capacityset_projectwrite_briefingadd_learningread_learned

Your plan

one price

Fourteen days, everything on. Then £6 a month.

No free tier and nothing held back during the trial — a crippled trial tells you nothing about the app. When the fourteen days end, Daymetric becomes a reader: it still opens, still shows your day and your log, and still exports everything. It just stops writing until you subscribe.

Daymetric

£6a month

£49a year

  • Mac and iPhone apps
  • The vault, the scheduler, the log
  • Claude, through the built-in connection
  • Sync between your devices
  • Coworkers and handoffs
  • Recurring tasks

Start the fourteen days in the app — subscribing needs the account the trial runs on. $7 and $59 in the US.

Pay once

£89once

  • The same app, paid once, never renews
  • Buy now, sign in later: it attaches to the email you pay with
Buy Daymetric

$99 in the US. No renewal, no reminder, no email.

Your files are yours whether you pay or not: reading and export never stop, and the folder opens in TextEdit with every server we run gone. Cancel any time — the refund policy is one paragraph.


Ready when you are

Download for macOS

Fourteen days, everything on. Your files are yours either way.