Questions
Answers, without the marketing.
Last updated 13 August 2026
The questions people actually ask before installing a baby tracker, answered plainly. If yours is not here, write to hello@baby-atlas.com.
Price and devices
Is Baby Atlas free?
It is free during early access, with no ads and no in-app purchases. A subscription is planned. Anything that changes will be announced in the app before it takes effect.
Which devices does it run on?
iPhone on iOS 16 and later, plus an Apple Watch app that installs alongside it. Android is in development and not yet publicly available. There is no web version.
Logging
Can I log a feed without opening the app?
Yes. Start or stop a feed or a sleep from the Apple Watch, or from the interactive home-screen widget on iOS 17 and later without unlocking the phone. A running session also shows as a Live Activity on the lock screen, and there are lock-screen widgets for the current state.
What exactly can I record?
Feeds as breast or bottle, timed live or added afterwards. A breastfeed records which side and in what order, so the app can answer which side comes next. A bottle records an amount in millilitres or ounces. Sleep sorts itself into nap or night from when it happened, with an optional wake-up reminder. Diapers are wet, dirty, or both.
Does it work offline?
Recent data stays readable without a connection and a banner shows when you are offline, but a new entry needs a connection to save. It fails immediately with a retry button rather than sitting in a silent queue, so you always know what has actually been recorded.
Sharing and children
Can both parents use the same baby?
Yes. Invite the other parent by email or by a shareable link, and entries appear on the other phone as they are logged. Up to three children, twins included, sit on one account.
Growth and estimates
How do the growth percentiles work?
Weight and length are plotted on the official WHO growth curves for the child's age and sex, using the WHO LMS method, and the percentile is written out as a plain sentence. Values are stored in kilograms and centimetres and displayed in metric or imperial.
How accurate are the nap and bedtime estimates?
They start from wake windows typical for the age, then adapt to the child's own recent sleep, including how long the last nap ran and how nap-light the day has been. They are estimates rather than a schedule, and they stay inactive for newborns because wake windows are not yet predictable at that age.
You, not the baby
What is the daily check-in for the parent?
A short check-in on your own energy, body, mood, sleep and sense of support, with trends over time and guided breathing exercises. Check-ins are private to the person who wrote them: a co-parent who shares the same child cannot read them.
Data
Do you sell my data or use it for advertising?
No. There is no third-party analytics SDK, no advertising identifier, no App Tracking Transparency prompt and no ad network in the app. Care data is never used for product telemetry: the only thing recorded about usage is which app version, language and timezone an account runs. The full policy is on the privacy page.
Can I get the data out, or delete it?
There is a PDF summary for a pediatrician visit and a CSV export of the entries. You can delete the account and its data from inside the app, or from the delete account page.
What does Baby Atlas not track?
Solids, pumping, medications, symptoms and temperature are not tracked, and there is no community feed. Head circumference is recorded at birth only and is not charted. If medical-grade logging is what you need, Baby Connect is the better choice. See how it compares.