When is the next nap due?

napnap answers that with your baby's rhythm, not with a table. One tap when they fall asleep, another when they wake, and the time works itself out.

No ads, no card, and your data is not sold to anybody.

1:52awakeNext nap, around 19:30

sleptstill to comenow

A day with napnap

Seven moments when this app gets opened, and what it shows at each one. The times are from an ordinary day of a five-month-old girl.

04:12

The button, and nothing else

A tap when they fall asleep and another when they wake. No forms, no menus: that gesture is the whole app. And the whole screen changes colour, so in the dark you can tell they are asleep without reading a word.

06:50

Feeds, and which side is next

Start, switch side, stop. Or, if knowing which side they are on is enough for you, one tap and it is recorded. The six-in-the-morning question comes answered in advance.

09:40

What time the next nap is due

It starts from what their age says and within a few days your baby is in charge. The whole day and up to two weeks ahead, and every hour comes with the margin it deserves.

13:05

Starting solids

A year-long plan with 92 foods: iron from the second week, the wait each allergen needs and what fruit is in season. Everything can be moved except the waits that go by age.

15:40

Weight and length, on the WHO curves

You record what the scales said and napnap gives you the centile and draws it on the WHO bands — the real ones, downloaded from their tables. And out of that comes a report for the doctor: two weeks of sleep, the measurements with their centile, how solids are going and the reactions. A one-page PDF, ready to take with you.

17:10

And when a number is not what you need, there are people

You ask mothers and fathers with babies the age of yours, not the whole forum. Your question carries what napnap already knows —23 weeks, 3 naps, stays awake 2 h 15— so nobody has to interrogate you before answering. With a handle, never with your name, and with a photo when something has to be shown.

19:24

The alert, with the app closed

A few minutes before, on the hour, and a nudge if they are still awake. Each one once and no more. And at night it keeps quiet, because an alert at four in the morning helps nobody.

Two phones, one home

Each of you signs in with your own email on your own phone, and you both see the same thing: the four o'clock feed is recorded by whoever is awake and turns up on the other phone. There is no password to pass along, because there is no password.

And the alerts belong to each of you. You may want the night to wake you and the naps not to, while your partner wants the opposite: the home is shared, the phone is not. There is room for six addresses, so the grandmother who comes at weekends is one more.

From outside

Everything the app does you can do yourself: one key per home and a documented API. Recording a nap with Siri is two steps in Shortcuts, and asking how the day is going is two lines.

POST /api/v1/babies/{id}/toggle { "expect": "awake" } GET /api/v1/say Aurora lleva 1:52 despierta.

napnap by the numbers

Everything here can be checked by opening the app. There is not one figure about anybody else's.

€0: Free, with nothing behind itNo paid tier, no ads, no trackers and no data to be sold. One single cookie, the one for your session.
92: Foods in a 52-week planWith iron from the second week, the wait each allergen needs and what fruit is in season. Everything can be moved except the waits that go by age.
14 days: Of forecast, every hour with its marginAnd it tells you what part of that forecast is your baby's by now and what part is still the table for their age. No app tells you that.
3 curves: Weight, length and head, from the WHODownloaded from the World Health Organization's own tables by a script, not copied out by hand. And the report for the doctor downloads as a PDF.
76: Documented API doorsEverything the app does you can do from outside it, with one key per home. And you take your whole history with you as JSON or as spreadsheets whenever you like.
2: Forum alerts, and no moreSomebody answering your question, and somebody finding your answer useful. There is no «somebody has posted» and there never will be.

How it learns

You tap the button

One hand, in the dark. A tap when they fall asleep and another when they wake. No forms, no menus: that gesture is the whole app.

napnap learns their rhythm

Every awake stretch that ends in a real sleep counts as evidence. Recent counts for more, three weeks ago is forgotten, and within a few days it is your baby in charge and not the table for their age.

It gives you the time, and how sure it is

The next nap, the whole day, and up to two weeks ahead with their margin. And it tells you how much of the forecast is your baby's by now and how much is still the table.

What almost no app will tell you

That at the start it knows nothing about your baby. napnap begins with the table for their age and says so with a number —«40 % of this is theirs by now»— until it has enough recorded. A forecast that will not admit how much it is making up is a forecast you cannot lean on when it matters.

Why this one and not another

Five questions you ask yourself before installing anything, and what napnap answers. Everything on this list is about napnap and can be checked by opening it.

What time is the next one due?: The time comes from your baby's rhythm, not from the table for their age: it starts with the table and within a few days they are in charge. And it is the only one that tells you what part of that forecast is already theirs and what part is still the table, as a percentage.
What about my partner? Do we have to use the same phone?: No. You add their email in Settings and they sign in with theirs, on their phone: you see the same home, the same baby and the same records, and each of you chooses which alerts to get. Their address stays on the home's list, so even if they lose the invitation and ask for a link six months later, they still get in.
Are they putting on weight?: You record what the scales said and see the centile against the WHO bands, taken from their own tables. That is where the report for the doctor comes from: two weeks of sleep, the measurements with their centile and the reactions to food, on one page of PDF.
Is what is happening to us normal?: You ask homes with babies the age of yours, and your question carries the context the app already has, so nobody has to interrogate you. With a handle, with photos if they help, and with the urgent kept out: if you write something that cannot wait, napnap does not publish it, it sends you to 112.
And if one day I want to leave?: You take the whole history with you whenever you like, as JSON or as spreadsheets, from Settings. And there is a documented API you can use to do everything the app does from outside it, iPhone shortcuts included.
What is this going to cost me?: Nothing. There is no paid tier and there will not be one in exchange for what you already recorded, there are no ads, there are no trackers, and your data is neither sold nor used to train anything.

And against Napper

Napper is the best-known baby sleep app in Spanish. These are the differences you notice day to day.

The time comes from your baby, not from their age

Napper works the wake window out from the age bracket. It is a reasonable starting point, but the range of normal at any age is enormous: two five-month-olds can last an hour and a half and two and a half hours, and both are fine.

And it tells you how much of that time it is making up

It is the difference you notice most in the first month. napnap shows a percentage —«40 % of this is theirs by now»— and it climbs as it learns.

Read the full comparison

Guides

The questions that end up being typed at three in the morning, answered at length.

Questions

At what age do babies go from three naps to two?: Usually between six and nine months, but age only says when it tends to happen. What says whether your baby is due is whether the naps they take already fill their day up to bedtime.
How long does it take to learn my baby's rhythm?: With two or three days of records, what your baby does already counts for more than the table for their age. At around eight useful windows the confidence is full, and the app tells you the percentage at every moment.
When do solids start?: Six months is what the WHO recommends. napnap shows the section from five months, because the month before is when it gets prepared, and it will not let a date be set before four months completed.

The first nap you record already counts.

No ads, no card, and your data is not sold to anybody.