Open any household app built in the last twenty years and you find the same object at the centre of it: the task. A thing with a name, an owner, and a tick box. It is a good object. It is also, for the question most households are actually arguing about, the wrong one.

Because a task is the part that was already visible. Somebody saw the dinner get made. Somebody watched the school run happen. Those are not the things that go unaccounted for. What goes unaccounted for is everything that had to happen inside one person's head for the task to exist at all — and none of that has ever had a tick box.

The half with no receipt

Knowing the prescription runs out on the 14th. Knowing the form closes before term starts, and that the school will not remind you. Registering that the shoes stopped fitting a month ago, that the parents' evening clashes with the thing on the 9th, that there are three days of nappies left rather than four.

None of that is a task. It is the condition under which tasks get noticed at all — anticipating, monitoring, deciding, and carrying the low continuous hum of being the person who will notice. It has a name in the research literature, cognitive household labour, and it has one distinguishing property: it leaves nothing behind. The task ends and can be pointed at. The noticing just continues, silently, and produces no evidence that it ever happened.

Which is why the argument never goes anywhere

Here is the shape of it, in almost every household where it comes up. One person says they are carrying more. The other person, quite sincerely, lists what they did this week — and the list is real. Dinners, pickups, a full weekend of DIY. It is not a defence made in bad faith. It is a defence made from the only evidence available, because the doing is the only half with a record.

The person carrying the noticing has nothing to put beside it. They have a feeling, and an exhaustion, and no way to show the shape of the thing. So the conversation becomes a contest of tiredness, which nobody has ever won, and it ends with one person feeling unheard and the other feeling accused. Then it happens again in six weeks.

So: write it down

That is the entire idea. One line in the evening for something you held in your head today. Thirty seconds, in your own words. Mark it heavy if it was. Do it for a month.

What you get at the end is not a feeling. It is a column, with dates on it, in your own handwriting. It is much harder to talk past a column than a mood — not because it wins the argument, but because it finally makes the argument about something specific instead of about who is more tired.

A receipt, not a scoreboard

The obvious next move is the one we are not making. Having built a counter, the natural product instinct is to add a second column: put both people in, compare, chart it over time, send a weekly summary. That product would be easier to explain and would probably sell better.

It would also be a weapon, and it would make every household worse. A number that exists to be compared stops being a record and becomes a case — and the moment your partner knows a running score is being kept on them, the honest thing you were writing down turns into something you are building against them. So: no shared view, no second column, no ranking, and no digest arriving in anyone's inbox. The Ledger has no partner-facing product at all. If you want someone to see it, you export it and hand it over yourself, on a day you choose.

And no encouragement, either

It will not congratulate you. There is no confetti when you log a hard day, no message telling you that you are doing amazingly, and nothing that turns any of this into a game — the whole reason it is worth counting is that it is not one.

There is a count of the days you have written in, and it will mark a round number, and we would rather print that than claim a purity the app does not have. But nothing is at stake in it, nothing scolds you for a blank evening, and no other person ever sees it. It is a bookkeeping page, and it is meant to read like one.

Where it lives, and what it costs

On your phone, and nowhere else. Entries stay on the device and move between your own devices through your own private iCloud. We run no database holding what you carried this week, which means we cannot read it, cannot sell it, and cannot hand it over to anybody who asks. An account is optional, always.

There is no price on the program page yet, because there is no price yet. It will be published there before launch and before anything can be bought, and there will be no ads at any figure. The register is how you hear about both.