Habit Tracker — Dark Mode

The Habit Tracker, built dark. Same arithmetic, same tabs, a palette made for a screen you are looking at after sunset.

Set a start date, list up to fifteen habits, and the twelve-month grid generates itself from that date. There is no year printed anywhere in the file, so it never expires and never needs replacing in January. Mark an x on the days you did the thing. Blank means you did not.

WHAT'S INSIDE

Dashboard - completion, the longest run, and every habit's rate

Start Here - how the file works and which cells are yours

Habits - your start date and up to fifteen habits

12-Month Grid - one row per day, where you mark the x

Streaks - current run, longest run and completion per habit

THE PART NOBODY ELSE BUILDS

Three decisions about the arithmetic, and they are the whole product. Current streak counts back from your most recent mark rather than from today, so the number does not read zero every morning before you have ticked anything. Completion is measured against days elapsed since your start date rather than against the full year, so on day three you are not three tenths of one per cent complete. And a blank day resets the run, because carrying a streak through unmarked days flatters the number, and a tracker that flatters you is decoration.

WHAT YOU GET

Excel workbook (.xlsx)

Google Sheets template - one click to copy

Setup instructions (PDF)

Free updates for life

BEFORE YOU BUY

This is the dark-theme edition. The light edition is sold separately, and the two are otherwise identical, so buy one. Works in Microsoft Excel 2016 and later, and in Google Sheets. No app, no subscription, no account, no reminders and nothing to sync. Digital download, all sales final.