Bottles, the baby tracker
Log a feed, diaper or sleep with one tap
Big cards, one per thing you track. Tap the bottle card and 120 ml is logged, now, on your phone and your partner’s. That’s the whole form.
Android comes first. iPhone after that.

Tap to log. Hold for the details.
A tap logs your usual amount at the current time. No form, no Save button.
Tap
Logs your usual: “+ 120 ml” on the bottle card, “+ Pee · M” on the diaper card. The phone buzzes so you know it worked without looking.
Hold
Fed 150 ml twenty minutes ago? Hold the card, change the amount and the time, then log it.
Undo
Tapped by accident? Undo is on the message that pops up. After that, change or delete it from the timeline.
“Tap a card to log now. Hold it for amount and time.”
When was the last one?
Each card answers it: “20m ago · 130 ml · by Alex”, with today’s totals underneath.
What you can log
Eight trackers. Put the cards in the order you use them.
Bottle
Your usual amount in ml or oz. Hold for a different one.
Breastfeeding
Start a timer on Left or Right. The side to use next is marked.
Diaper
Pee, poop or both, small to large.
Sleep
Tap Start when they drop off, again when they wake.
Washes
Bath or quick wash, so you know when the last one was.
Weight
In kg or lb, plotted on the WHO growth curve.
Length
In cm or inches, on its own growth curve.
Temperature
In °C or °F, with the fever line drawn in.
Log together, on your own phones
Share a child with your partner, a grandparent or the nanny. Everyone logs on their own phone and sees the same timeline.
Invite with a QR code or a link
Show the code to someone next to you, or send the link by WhatsApp, text or email.
See who logged what
Every entry says who did it: “130 ml · by Alex”. Useful at handover, and at 4am.
Invites work once
Each invite is for one person and expires after 7 days.
Remove someone any time
From the child’s settings. They stop seeing new logs.

Every day on one screen
The timeline lists every log, newest first, grouped by day. Each day starts with a one-line summary: bottles and ml, feeds and minutes, diapers, sleeps and hours.
Today
- 2 bottles, 260 ml
- 1 feed, 11 minutes
- 2 diapers
- 1 sleep, 2 hours 54 minutes
- Filter by tracker, so you only see bottles or only diapers.
- Got the time wrong? Edit or delete any entry afterwards.
- The numbers a midwife or doctor asks for, already added up.
Patterns you can see
Switch the timeline to graphs to see the last week, month or year for each tracker.

Sleep rhythm
Each day is a column of asleep and awake, with bottles and feeds as dots. After a week or two, the pattern shows.

Growth curves
Weight and length on the WHO percentile curves from 3 to 97, with the percentile after each weigh-in.
Totals per day
Sleep hours, bottle amounts, breastfeeding minutes, diapers and washes.
Bottles isn’t medical advice. If something worries you, ask your midwife, health visitor or doctor.
Made for 3am
Most logs happen in the dark with a baby in one arm. Bottles is built for that.
2:10 AM
130 ml
Bottle · by Alex
2:19 AM
Pee
Diaper · Small · by Alex
3:05 AM
2h 54m
Sleep until 5:59 AM · by Alex
6:17 AM
11m
Breastfeeding · Left

Dark mode that doesn’t glare
Warm and dim, never pure white. It follows your phone, or set it yourself.
One free hand is enough
Big cards you can hit with a thumb. Screen-reader labels on every button.
Works without signal
Logging never waits for the network. No signal in the hospital or on the train? It syncs when you’re back online.
Your child’s data
Only the caregivers of a child can see that child’s logs. Nobody else.
- You sign in with Google. That’s what lets your logs sync between phones.
- Remove a caregiver and they stop seeing new logs.
- Your data is stored in the EU.
- We don’t sell your data.
Questions about your data? Email hello@babybottles.app
Questions
What does Bottles cost?
Bottles: Baby Tracker is free to start, and sharing a child with another caregiver is free. Paid plans for bigger families, with more caregivers and children, may come later.
Can I download it yet?
Not yet: Bottles is coming soon to Google Play for Android. An iPhone version comes after that, but there’s no date yet.
How fast is logging?
One tap: the card logs your usual amount at the current time, and the phone buzzes to confirm. Hold the card instead to set a different amount or time first.
Can my partner use it on their own phone?
Yes, invite them with a QR code or a link and you both log to the same child. Grandparents and nannies can join the same way, and every entry shows who logged it.
Does it work without internet?
Yes, logging works offline and syncs when the phone is back online.
Can I track more than one child?
Yes, add another child and switch between them from the name at the top of the screen. You see one child at a time.
Who can see my child’s data?
Only the caregivers of that child: you and the people you invite. It’s stored in the EU, and we don’t sell it.
Do I need an account?
Yes, you sign in with Google, which is how logs sync between your phones.