Try it now
Tap a button to add a log — or drag a card's grip to a new time.
Tap to log, drag to reschedule. In the app, everyone caring for your baby logs to the same day.
A quick-log bar sits at the bottom of your day — feed, sleep, diaper, whatever you track most. One tap and it lands on the timeline, timestamped to now.
Swap in what you actually track — formula, solids, pumping, mood, milestones — and it adapts to your baby’s stage as they grow.
Partner, grandparent, nanny — invite them in and you all log to one shared day, updating in real time. No more "did you feed her?" texts.
Feeds, sleeps, and diapers line up on one timeline, so the shape of the day — and what’s drifting — is obvious without reading a single number.
No forms to fill at 3am. Tap the icon, it's logged. The whole interaction is a single thumb.
Last night and today, side by side. Long stretches and short ones stand out — you see the day without doing math.
Logged on grandma’s phone, on yours in seconds. One baby, one shared timeline, everyone in sync.
Weekly insights
A week of taps becomes a weekly snapshot — total awake time, average bedtime, how feeds are trending. The summary you actually want to text the grandparents, and the one your pediatrician will thank you for.
Safe by design
We built this because every other tracker we tried was a form. At 3am, on no sleep, a form is the thing you quietly give up on.
The parents at Onzenna
Feeds (breast, formula, solids), sleep and wake, diapers, pumping, mood, milestones, measurements, medicine, and more. You pick what shows on your quick-log bar.
Yes. Invite anyone who cares for your baby — partner, grandparents, a nanny. Everyone logs to the same shared day and sees it update in real time.
Yes. The quick-log bar shifts with your baby's stage — from breastfeeds and diapers to solids, potty, and activities.
No. The tracker records what you log and shows you the patterns. It never diagnoses or replaces your pediatrician — but you can export a summary to share with them.
Your logs are private to your account and the caregivers you invite. We never sell your data or use it to train models.
One tap per moment. Everyone caring for your baby, on the same day.
Get startedA sleep coach that learns your baby's rhythm — not someone else's average.
Learn howA private family album that sorts your photos by day — without you lifting a finger.
Learn howA companion who grows up with your child — from newborn to first words to first questions.
Learn how