Serinette

A lullaby made only from your baby’s sounds.

Serinette is an iPhone lullaby app. A little bird listens to your baby, answers a moment after they stop, and learns the note their voice keeps coming back to. Then it sings a melody made from those sounds alone, and every week it learns again.

Serinette on the App Store, coming soon

Coming soon to iPhone

The first melody is free, and yours to keep.

A bird bent from one dark wire, perched on a wire in front of cream paper, listening to the line a baby's voice has drawn in the air

Your baby teaches a bird to sing

A real baby’s sound, drawn the way the app draws it. The brush rises and falls with their voice and is as heavy as it was loud. The fine line over it is the bird’s echo.
The first sound
The bird sleeps on its wire until it hears your baby. It wakes, tilts its head the way birds do to listen, and echoes the sound in its own soft whistle, a moment after your baby stops. If your baby starts again, it stops and listens.
Later that day
It starts answering instead of echoing, and when nobody is making a sound it practises quietly on its own, trying a phrase and getting it a little wrong. You can hear the song forming.
Within a few sessions
Its first melody settles, often within a morning: a few seconds made from the note your baby comes back to most and the shape their voice likes best. The bird sings it on its own for the first time.
Every week after
The bird learns again from the sounds your baby is making now. The song stays recognisably theirs and changes with them, and it grows longer at birthdays and at the moments you mark, like a first word.

How the bird listens, and what it ignores

The song grows with them

It starts as one short phrase, sung by one voice. As your child grows it gains an answer, then becomes a whole song with the bird’s second voice under it, then new sections, each one bridged from the last.

Every version is kept, from the first melody on. Play any week, hear how it changed, or play “the first year”, a version from every month in about two minutes. Families who subscribe can save any version as sheet music to print, or as MIDI.

Every version, kept

The first melody. Six seconds.
The same song two years on. A minute long, with the second voice under it. Both were made by the app’s own rules from real recordings of a baby, the way your bird’s will be made from yours.

At bedtime, it sings their song

Tap “Sing Sophia’s song”. The paper turns to night and the bird sings this week’s version softly, over a small orchestra of real instruments: harp, strings, flute and celesta. Then it tucks its head under its wing, and the screen fades to dark before the last notes finish.

Song time is a daily reminder at the hour you choose. It rings with the opening of their song.

Bedtime and song time

More birds come to the wire

As the song grows, other birds arrive at dawn, each singing its own part: a dove in the middle of the chords, a wren that trills where the tune rests, an owl for the bass at bedtime. Nothing announces them. One morning they are there.

From 18 months, the wire holds a bird for every note of your child’s song, and any touch plays the next one. There are no wrong notes, because every note is theirs. When your toddler sings, the birds sing back.

Their voice stays on your phone

The bird listens on the phone, and nothing your baby says is sent to us. There are no accounts, no ads and no tracking. The screen your baby sees has no words and nothing a tap can open; everything for grown-ups sits behind a gate.

Each week the bird keeps a few of your baby’s own sounds beside the song they made. We call it the Nest. It lives on your phone and in your phone’s own backup, and you can save the sounds, delete them, or turn keeping off.

The songs are made by musical rules from your baby’s sounds. There’s no generative AI in Serinette. Made for you and your baby to listen to together.

Why it’s called Serinette

A serinette is a little hand-cranked organ, made in France from about 1730, that people played to their canaries until the birds sang its tune. For three centuries we taught birds our songs. In 1784 Mozart wrote down the tune his pet starling sang back to him, nearly the finale of a concerto he had just finished, with one wrong note.

Serinette turns it around. Your baby is the tune, and the bird learns it.

What is a serinette?

The first melody is free

Your bird’s first melody is free and yours to keep, and so is the week after it. To keep the song growing every week, with the Nest and sheet music:

Monthly
$5.99 a month, after 7 days free
Yearly
$39.99 a year, after 7 days free
Once
$79.99, for good

If you stop, the song stops growing. Nothing already made is lost, and your baby’s sounds stay yours to save.

Questions

Where can I find a personalized song for my child?

Most personalized songs put your child's name into lyrics someone else wrote. Serinette makes the song itself from your child: a little bird learns the note their voice keeps coming back to and the shapes it likes to make, and builds a melody from those sounds alone. Every week it learns again, so the song changes as they do.

How do you write your own lullaby?

Start from a note your baby already sings. Listen for the pitch they keep returning to and hum it. Make a short phrase that rises and falls back to that note, repeat it, then answer it with a second phrase that comes home. Keep it slow, soft and narrow in range. That is close to what the bird does, only it listens far more patiently.

What makes a music app safe for a baby?

Look at what it collects and what it shows. Serinette has no ads, no accounts and no tracking. The bird listens on the phone, and nothing your baby says is sent to us. Purchases and settings sit behind a parent gate, and the screen your baby sees has no words and nothing a tap can open.

What ages is it for?

Babies and toddlers from about 3 months to 3 years, with the grown-up holding them. It asks for a birthday when you start, so an older baby hears their song grow sooner. From 18 months, a toddler can play the song on the birds themselves.

Does it record my baby?

It listens only while the app is open, and stops when you leave it or when bedtime goes dark. The songs are made on your phone. Each week it keeps a few of your baby's own sounds beside the song they made, in the Nest, on your phone only. You can turn that off, delete any sound, or save them all.

Is there AI in it?

No generative AI. The songs are built by musical rules from your baby's sounds, and played by the bird's whistle and by real recorded instruments.

How much does it cost?

Your bird's first melody is free and yours to keep, and so is the week after it. To keep the song growing every week: $5.99 a month or $39.99 a year, each starting with 7 days free, or $79.99 once. If you stop, nothing already made is lost.

Does it work on iPad or Android?

It runs on iPhone and iPad with iOS 17 or later. It isn't on Android.

Hold your baby, prop up the phone, and listen to the bird learn.

Serinette on the App Store, coming soon

Coming soon to iPhone