iPhone · Android
The honest baby cry analyzer app
The only app built on the fact that a cry's sound cannot tell you the reason: Agubu looks at your baby's day, ranks the likely reasons, and says when it isn't sure.
One-tap sleep, nursing, bottle and diaper logging; 16 soothing sounds without ads; no account, no server — everything about your baby stays on your phone.
Scan with your phone camera to get the app
Says when it isn't sure
The reason for a cry cannot be read from the sound; we measured that on our own data. Agubu ranks possibilities, speaks in three confidence tiers, and says “I'm not sure” when the possibilities are close.
Everything on your device
No account, no server, no ads, no analytics. Audio is held in memory for 8 seconds and erased when the analysis ends; your baby's records never leave your phone.
The core is always free
3 analyses a day, unlimited logging, 8 sounds with a timer, the last 7 days of history, safety content and the methodology page are never put behind the paywall.
How it works
Listens for 8 seconds
On the Today tab you tap Listen to the cry; the microphone opens for 8 seconds only. Audio is never written to disk, never leaves your phone, and is erased from memory once the analysis ends.
Is it a cry, and is the recording good enough?
An on-device model detects whether the sound is actually a cry and checks recording quality. Silent, noisy or too-short recordings are rejected honestly — it does not invent a reason for silence.
Context ranks the reasons
Time since the last feed, time awake, the last diaper change, your baby's age and the hour of the day rank the likely reasons with probabilities. A “What did this result look at?” panel shows which facts were used.
Your feedback personalises it
When you answer “right / wrong”, the app takes note; once enough examples have built up, the ranking adjusts to your baby.
Why we call it honest
A baby's cry carries who the baby is and how old they are. It does not carry why they are crying. We say that as a measurement, not an opinion: on the only public dataset labelled by cause, with baby-wise cross-validation, predicting the cause from sound stayed at chance level. The same pipeline recognises the individual baby far above chance — so the method works; the information simply is not in the sound.
That is why Agubu does not try to read the reason from the sound. The microphone confirms that a cry is really happening; the reason comes from your baby's day. The result is not a single answer but a ranked set of possibilities — and when they sit close together the app says “I'm not sure”, because hiding uncertainty does not remove it, it only hands you misplaced confidence.
Every number we measured, including our own mistakes, is on the Methodology page and in the article Why a cry cannot be decoded. Both are inside the app as well, and neither is ever locked. For what to check in the moment instead of interpreting the sound, see Why is my baby crying.
Features
Baby cry analyzer — listens to the cry, ranks the reasons from context
The baby cry analyzer in Agubu starts with one question: is this sound actually a cry?
Baby tracker app — sleep, nursing, bottle and diapers in one tap
As a baby tracker app, Agubu logs four things: sleep, nursing, bottle and diapers.
Wake windows by age — when is the next sleep due?
Wake windows by age are the stretch a baby can comfortably stay awake between one sleep and the next: thirty to sixty minutes in a newborn, several hours by the first birthday.
Baby sleep sounds app — white noise, lullabies and womb sound, without ads
As a baby sleep sounds app, Agubu keeps everything in one list: 16 sounds, all playing on your device, no internet needed, no ad ever cutting in.
Baby app privacy — no account, no server, no tracking
Baby app privacy in Agubu means something concrete: there is no account, no server, no sync, no ads, no analytics, no crash reports and no cookies — not on this website either.
Baby sleep and feeding report for pediatrician visits — the last 30 days as a PDF
A baby sleep and feeding report for pediatrician appointments means you are not scrolling your phone in the exam room.
Sounds
- White noise for baby sleep
- Pink noise for baby sleep
- Brown noise for babies
- Womb sounds for baby sleep
- Heartbeat sound for baby sleep
- Shushing sound for baby
- Fan sound for baby sleep
- Vacuum cleaner sound for baby
- Car ride sound for baby sleep
- Hair dryer sound for baby
- Rain sounds for baby sleep
- Ocean waves for baby sleep
- Stream sounds for baby sleep
- Brahms lullaby for baby
- Mozart lullaby for baby
- Schubert lullaby for baby
Guides
Wake windows by age
From half an hour in a newborn to several hours by the first birthday: rough wake windows by age and what tiredness looks like.
Night sleep and night waking
Night sleep is the result of months of maturing: what is normal at each age, the truth about regressions, and what tends to reduce night waking.
Feeding rhythm
How often babies feed at each age, the hunger cues that come before crying, and the signs that your baby is getting enough.
Colic and evening fussing
Long, hard-to-soothe crying in an otherwise healthy baby: the rule of threes, the six-week peak, and what genuinely helps.
Wind and burping
The signs of wind, the three burping positions, a routine after feeds, and an honest look at whether burping reduces crying.
White noise for babies
Why it helps some babies, how strong the evidence is, and the safe volume and distance that matter most.
Free and Premium
Free
- 3 cry analyses a day — with the full result
- Unlimited sleep, nursing, bottle and diaper logging
- 8 soothing sounds and a sleep timer that fades out slowly
- The last 7 days of history
- Guide articles and safety content
- The methodology page — every number we measured
Premium
- Unlimited cry analyses
- 16 sounds and a mixer that layers up to 4 at once
- Unlimited history
- A 30-day PDF report to take to your pediatrician
- The in-depth sections of the guides
Basic tracking and safety content will never go behind the paywall. Prices are shown in the store for your region; the subscription is managed through your app store account.
Compare
Best baby cry analyzer apps: 10 apps, one honest comparison
The best baby cry analyzer apps all make the same promise: record a few seconds, wait, learn why.
Best baby translator apps: the honest answer is that none of them translate
Every baby translator app in the store makes the same promise: to tell you what your baby is trying to say.
Frequently asked questions
Does a baby cry analyzer app really work?
No app that reads the reason from the sound works reliably; we saw that in our own measurement, and a peer-reviewed 2023 study reaches the same conclusion. The part of Agubu that does work: it detects the cry from sound, then ranks the likely reasons from the last feed, sleep and diaper you logged. The more you log, the more useful the ranking becomes; with nothing logged it says “I'm not sure”.
How accurate is Agubu?
We do not give a percentage, because the percentages in this category come from a measurement mistake, which we explain on the Methodology page. What we can say: cry detection works reliably; the ranking of reasons comes from context rather than sound, and when the possibilities are close the app tells you. Only you know what was right — that is what the “right / wrong” feedback is for.
Is there a free baby cry analyzer app?
Yes. Agubu's free tier is permanent: 3 analyses a day, unlimited logging, 8 sounds, the last 7 days of history, the guides and the methodology page. Premium adds unlimited analyses, 16 sounds with a mixer, unlimited history and the 30-day doctor report.
Does it work offline?
Yes. Cry analysis, logging, sounds and guides all run entirely on your device. The app only goes online when you buy a subscription or if you turn notifications on.
Is my baby's data uploaded anywhere?
No. There is no account, no server of ours, no sync. Records live in a local database on your phone; audio is never even written to disk and is erased from memory once the analysis ends. Under Settings → Your data you can delete all your records; deletion cannot be undone.
Which phones does it run on?
iPhone (iOS 15.0 or later; on iPad in iPhone compatibility mode) and Android. The app is in English and Turkish and follows your device language.
Is it a medical device? Does it replace a doctor?
No. Agubu is a care tool; it does not replace a clinician's assessment and cannot assess a health problem behind a cry. If the crying lasts more than 3 hours, if there is fever, vomiting or a rash, or if your instinct says something is wrong, put the app down and see a doctor.
Does the microphone listen in the background?
No. The microphone opens only when you tap Listen to the cry, and only for 8 seconds. The app can play sound in the background — so a lullaby keeps going with the screen locked — but it cannot record in the background.
Is there an app that tells you why your baby is crying?
Not from the sound, and we would rather say that on the front page than in the fine print. What Agubu does instead: it confirms a cry is happening, then ranks the likely reasons from your baby's day — the last feed, time awake, the last diaper, age and the hour — and says “I'm not sure” when the possibilities are close. Treat the ranking as a prompt for what to check first, not as a verdict; you know your baby, the app only knows the log.
When to see a doctor instead of opening the app
No app can assess a medical condition behind a cry. Put the app down and see a clinician if:
- Crying lasts more than 3 hours and nothing settles it
- There is fever, vomiting or a rash
- The cry sounds unusual — high-pitched, weak or moaning
- Your baby refuses to feed altogether
- Your instinct tells you something is wrong
In an emergency, call your local emergency number. Agubu is not a medical device and does not replace a clinician's assessment.
Documents
The app's legal texts; the same version is readable inside the app.
Privacy Policy
What is stored where, what never leaves the device, and how to exercise your rights.
Terms of Use
What Agubu is not, when to call a doctor, and the limits of our liability.
Subscription Terms
What the free tier includes, what Premium unlocks, how to cancel and where refunds go.
Support
Contact and FAQ: deleting your data, cancelling a subscription, the limits of the analysis.
Contact
Yiğit Samet Ölmez · independent developer