Habits down the side, days across the top, tick the boxes. The same grid you built in Sheets, except it counts the streaks correctly, works with no signal, and fits in your thumb on the walk home.
A gym habit set to three times a week does not break on Tuesday, and a weekday habit does not break on Sunday. Today sitting unticked never breaks anything either, because the day is not over. Most trackers get this wrong and punish you for a rest day you planned.
Week, month and year views of the same matrix you are used to, with the habit column frozen, weekends shaded and a completion percentage under every day. Count things too (eight glasses, twenty pages, ninety minutes) and the cell fills proportionally instead of pretending it is all or nothing.
Completion rate, current and all-time streaks, perfect days, which weekday you actually keep and which one you quietly skip, a six-month heatmap and a streak leaderboard. All computed from your own logs. Nothing estimated, nothing invented.
There is no account and no server holding your history. Everything lives in your browser, which is why it opens instantly and keeps working on a plane. Export the whole thing as JSON or a spreadsheet-ready CSV whenever you like, and do take a backup, because clearing your browser data clears this too.
Not free-for-now, not a trial with a countdown. There is no server to pay for, so there is nothing to charge you for.
No. Open it and start ticking. There is nothing to sign up for and no email to give.
In your browser's local storage, on the device you are using. It is never uploaded, which also means nobody else (including us) can read it or recover it for you.
Your history goes with it. This is the honest trade for having no account. Settings → Data → Export JSON gives you a complete backup that imports straight back.
Yes, but they are separate copies. Export from one and import on the other when you want them to match.
Yes. Add it to your home screen and it opens with the aeroplane mode on, same data, same speed.
Not automatically yet. Create the habits, then backfill by clicking cells in the month grid. For most people that is a few minutes of catching up.