The free baby tracker you share with your partner, live.
Your baby's story, logged with love.
Bunavi is a baby tracker for both parents, on iPhone. Quickly log breastfeeding, bottles, pumping, sleep, diapers and growth, and your partner sees every entry live on their own phone. It's free for both of you, with no ads and no time limit; Bunavi Plus is optional. Your baby's records are stored in the EU (Frankfurt, Germany) and never sold.
Free for you and up to 3 others · No ads · Privacy
Feeding, sleep, diaper and growth tracking in one app
Built for one-handed, half-asleep logging — because you have a baby in the other arm.
Breast, bottle, pump or solids — a few taps and done
Start a left- or right-side breastfeeding timer mid-yawn, log a bottle in millilitres or ounces, track pumping totals, and keep a solids diary once purées begin.
- Switch sides mid-feed; each side's minutes are kept (like L 7 · R 9 min)
- Bottle amounts, pumping sessions and daily totals
- A little confetti every time you log — you earned it
Naps and nights, gently timed
One tap starts the sleep timer. From 8 weeks old, once there's about a week of sleep logs, Bunavi estimates when the next nap window likely opens — from your baby's own rhythm, or a rough guide for their age — so you can watch for sleepy cues before the overtired tears.
- A next-nap estimate from your own sleep logs
- Day naps and night sleep on one gentle timeline
- Night feed mode: a warm, dimmed theme for 3 a.m., on or automatic
Watch them bloom on WHO growth charts
Log weight, length and head circumference and see your infant bloom along WHO percentile bands — beautiful curves you'll actually understand at a glance.
- Weight, length & head circumference percentiles
- A growing sprout that blooms with every entry
- Ready to show at every pediatrician visit
For context only — always chat with your pediatrician.
Celebrate every first
First smile, first roll, first step — Bunavi keeps a milestone timeline with badges and gentle age-based suggestions, so no first slips by unnoticed.
- A storybook timeline from day one
- Badges and streaks that make logging a tiny joy
- Gentle age-based suggestions — tap when it happens
Your data, yours
Private, encrypted, never sold.
How Bunavi works
Add your baby — or twins, with Bunavi Plus — in under a minute. Name, birthday, done.
A nap or a feed timer starts with one tap and a wet diaper takes two, even one-handed at 3 a.m.
Nap estimates, growth curves and milestones bloom from your logs — shared live with your partner.
Free to start. Plus when you're ready.
Bunavi Free
Everything you need from the first day home.
- Unlimited feeding, sleep & diaper logs
- WHO growth charts & a next-nap estimate
- Milestone timeline & badges
- You and up to 3 others
Bunavi Plus
Everything for growing families.
€2.99/month · €24.99/year · €34.99 once
- Everything in Free
- More babies and people, one Plus for the whole family
- Monthly trends
- PDF reports for pediatrician visits (in English)
- Cry insights & calming tips
Bunavi Plus is an optional upgrade inside the app — new subscribers can start the monthly or annual plan with a 7-day free trial; cancel anytime. Prices are shown in euros; the App Store charges Apple’s price for your country.
Baby tracker questions, answered
Yes. Your baby's records are stored in the EU (Frankfurt), encrypted in transit and at rest, never sold, and never used for ads or to train AI. In the app, only the people who share the baby can see them; the service providers named in our privacy policy process them for us. You can export your data or delete your account yourself at any time — a baby you share passes, with its history, to the person who has been on it longest.
Bunavi stores your baby's records in the EU (Frankfurt, Germany), encrypted, and never sells them; a few supporting services outside the EU are named in the privacy policy. There are no ads, no chatbot and no cloud AI; a few optional writing touches run on your iPhone.
Yes. Bunavi is built offline-first — log a feed or nap at 3 a.m. with no signal and it saves instantly. Everything syncs to your account and any shared caregivers the moment you're back online.
Yes — the core (feeding, sleep, diapers, WHO growth charts, the next-nap estimate and milestones) is free forever, with no ads. Bunavi Plus adds more babies and more than 3 people per baby, monthly trends, PDF reports for your pediatrician (in English), and cry insights with calming tips. Daily and weekly trends, the weekly recap and the CSV export stay free.
Yes. New subscribers get a 7-day free trial of the monthly or annual plan, so you can try everything first — cancel at least 24 hours before it ends and you won't be charged. The App Store shows whether the trial applies to you before you pay. Prefer to pay once? There's a one-time lifetime unlock too.
Yes. Each baby's logs, charts and milestones stay completely separate, and you switch between them from the baby's name at the top of the app. Tracking more than one baby is part of Bunavi Plus.
Yes — invite your partner with a single-use QR code and every feed, nap and diaper syncs to both phones in real time. The free plan covers you and up to 3 others, such as a partner, a grandparent and a nanny. Bunavi Plus adds more, and one Plus covers everyone who shares your baby.
The app, the home page and the blog are in 18 languages: English, German, Spanish, French, Italian, Portuguese, Dutch, Polish, Swedish, Danish, Norwegian, Finnish, Bulgarian, Russian, Japanese, Korean, Simplified Chinese and Traditional Chinese. Pediatrician PDF reports are in English.
Not yet. Bunavi is out now on iPhone (iOS 15.5 or later), free on the App Store. The Android version is in closed testing on Google Play, and there is no public release date yet. Leave your email below and we will write to you the day it lands.
No. Bunavi is a journal, not a medical device — growth charts use WHO reference bands for context only. Always talk to your pediatrician about your baby's health, and call your local emergency number in an emergency.
Bunavi speaks your language: English, Deutsch, Español, Français, Italiano, Português, Nederlands, Polski, Svenska, Dansk, Norsk, Suomi, Български, Русский, 日本語, 한국어, 简体中文 and 繁體中文, and your partner's notifications arrive in their own phone's language. Pediatrician PDF reports are in English.
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Bunavi is out now on iOS
Be there from the first chapter
Free on the App Store, with everything you need from the first day home.
On Android? Leave your email and we will write the day Bunavi lands there.
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