yuna

Know the next napbefore it starts.

yuna turns the notes you already keep into the time your baby is likely ready to sleep again – learned from your baby, not from an average.

For smartphone, tablet, iPhone Duo and Mac

// How it learns

Your baby’s rhythm,not an average.

Log sleep, feeds and diapers with one tap. Every entry teaches yuna a little more, and after a few days it predicts the next nap to the minute – with wake windows that grow as your child does. “Why this time?” shows what the prediction is based on.

Very short sleep? yuna asks whether it was a real nap or just a doze, so the prediction stays right. Logged a little late? Change the time afterwards.

yuna on iPhone: the next nap in 5 minutes, expected to start at 9:46, with wake window, duration and wake-up time.

// Sleep sounds

Gentle sounds,off on their own.

Heartbeat, womb or soft noise – low-frequency sounds that fade in and out gently. Choose 15 or 30 minutes, and they switch themselves off.

Keep them quiet – room volume, around 50 dB – and place the phone away from the crib. The app links the study behind this advice.

Sleep sounds in yuna: Heartbeat is playing, next to Womb and Soft, with volume and a 15-minute timer.

// Together

Two phones,one day.

Pair a second phone and you both log into the same day. Entries reach the other phone on their own – even a tap on the widget while the app is closed. If you both log the same thing, yuna notices and asks which entry to keep.

One tap on the widget logs sleep, a feed or a diaper.
End-to-end encrypted between your own phones.
No account, no sign-up.

yuna’s day view: night sleep, feeds and diapers so far, and the naps still to come.

The yuna widget on the home screen: the next nap at 9:46 and buttons to log with one tap.

// iPhone Duo

Optimized foriPhone Duo.

Folded, the cover display shows the next nap at a glance. Unfolded in landscape, yuna opens like a book – the day’s ring on the left, every detail on the right. Upright, it uses the whole display. On iPad, yuna works the same way.

yuna on iPhone Duo, folded: the next nap on the cover display.

yuna on iPhone Duo, unfolded in landscape like a book.

yuna on iPhone Duo, unfolded upright with statistics.

// Privacy

No account, no tracking, no ads. Everything stays on your device; when you pair a second phone, entries travel end-to-end encrypted between your own devices.

yuna is not a medical device and does not replace advice from your pediatrician or midwife.

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