The logbook, not the lecture: why Hodierna exists

When our daughter was born this August, the kraamzorg left a book behind. A plain paper booklet: feeds on the left, nappies and sleep on the right, a page a day. For a week it was the most useful object in the house.

Then it filled up. Then it was downstairs while we were upstairs. Then it was 3am, the baby was finally asleep on one arm, and turning on a light to find a pen would have undone the last hour.

Hodierna is that book, on the phone that was already in your hand. It was built by a parent, during those exact nights, for his own daughter — which is why it is shaped the way it is.

What it does

It writes things down. Feeds, nappies, sleep, growth, notes — each in one tap, reachable with a thumb, in the dark. It tells you which breast to start on, because at 3am nobody remembers. It works with no signal and syncs when a connection returns. And it lets you share the book with whoever is helping: your partner, your kraamzorg, your verloskundige — each with their own access, for as long as their care lasts and no longer.

What it refuses to do

It gives no advice and draws no conclusions. It will not tell you that a weight is fine or that a gap between feeds is too long — it cannot know, and pretending otherwise would be worse than useless. It states what you wrote, plainly, and for anything clinical it points you at the people who actually know your child: your kraamzorg, verloskundige, huisarts or consultatiebureau.

It also keeps no score. No streaks, no badges, no targets. Nobody needs a medal for feeding their own child.

What is free, and what is not

The logbook — writing things down and reading them back — is free, forever, for every child. Not free for a month, not free until an upgrade prompt. That is the part you would have had on paper, and it will never cost anything or need a network at 3am.

Premium exists for the parts that genuinely cost money to run: keeping hospital and gemeente paperwork in one place, exporting everything, the archive that outlives the logging. Because the intense months are over quickly, the offer we lead with is paying once — not a subscription designed to be forgotten. The AI features, which cost money every single time they run, are bought separately as credits that never expire. Nobody pays for what they do not use.

Hodierna is on the App Store now, in English, Dutch and Turkish. If it makes one 3am slightly less confusing, it has done its job.

Questions, ideas, complaints: hallo@hodierna.app.

Also in: Nederlands Türkçe