Train your ear to name any note.

Short daily lessons, practice built from the notes you miss, and games that keep it fun.

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A note plays. You say which one.

No reference note, no hints. A note, a guess, and a word from Sine.

A lesson in Sine: a note plays while Sine listens at the piano, under the word Listen.

Listen.

One note. Nothing to hum up from.

The keys light up under the question: which note was that?

Name it.

Tap the note you heard. Only one is right.

A miss: Sine says it was A flat and you said A, and plays both, yours first. A flat is ringed in green, A in red.

Know.

Wrong, and you hear both: yours, then the right one.

Watch your ear get better.

Every answer is kept. Sine finds the notes you miss and what you mistake them for, builds your practice around them, and shows you each one climbing from one session to the next.

2,000,000+notes named by Sine players so far
12notes, learned one at a time

New

Little surprises.

Every unit has a place of its own. Now and then, after a lesson, something happens there at night: the fireflies come out, the power cuts, rain hits the roof. Play it through for a postcard, and leave a keepsake behind.

Two sealed envelopes on a night sky, each with a hint: Something in the wardrobe isn't quite right. Sine dreams when he's left alone.

And secrets.

Finish Unit 1 and keep your eyes open. These are the only hints.

Rain on the roof: a rooftop at night under string lights, rain falling past Sine at his piano, and the keys under the words Name the drop.
The postcards page: Fireflies, The power cut, Rain on the roof, Midnight in the workshop and The stairwell echo, each a picture of Sine in that place with the stars won.

Everything that's in it.

Every note, one key at a time, then up and down the octaves and on to the harder ear. Games with a theme each, Rivals leagues against other players, a band, an orchestra and a ship's crew to find the wrong note in, trophies with a room of their own, friends to practise with, and a score that says how far you have come.

Before a lesson, Sine at a piano says Listen, something new, over a keyboard with C and G lit and a question mark on the key between them.

Meet each key first.

Before each new note, Sine walks you through it on the piano: hear it, hum it, find it.

A lesson on a club stage, with a drum kit and a double bass behind Sine, asking which note was that.

A place for every unit.

Each lesson is set in its unit's place, and each unit opens with a short scene.

The Games tab: Out of Tune, Sine Duel, Rivals and Defuse at the top of the list.

Games, too.

Find who is out of tune in the band, the orchestra or out at sea, run a tuning shop, race Sine to the note, or climb Rivals' leagues against real players.

Free to play. Encore for the whole show.

Free

Everything you need to start, and to keep going.

  • The warm-up, every note, close calls and the first octave unit
  • Quick Practice, stats and badges
  • The Sine score, once a week
  • Every instrument, from guitar to tuba
  • Sine Circles, with your friends
  • Out of Tune, Tune-up, Rivals, Sine Duel, Defuse and Ochoko 4 plays every 6 hours
  • Out of Tune's Practice field, Friday night lights, Rehearsal and Summer lawn

Encore

All of Sine, with nothing held back.

  • Every game, as often as you like
  • Twins and Stargazer
  • Every unit after that: the low octaves, blips, other voices, traps and more
  • Every Out of Tune map, band and orchestra
  • The top ranks in every game
  • The Aurora Cabin and the Reef for Quick Practice
  • The whole library: chords by name, intervals, chord colour and singing

7 days free, then $14.99 a year.
Or $1.99 a month, or $29.99 once.

US prices; your store shows yours.

Band, orchestra, high seas

Out of Tune.

A school band or an orchestra plays a tune, and one player is out of tune. Hold a player to hear them on their own, then call out the one who sounds off.

Out of Tune's front page: a marching band on a school field at golden hour, the Practice field chosen, and a Play button.

Map by map.

From the practice field to contest day, each its own place, with its own songs and its own way to go out of tune.

A round under the stadium lights: the culprit's tuner swings back to in tune, and the panel says Right, B was 40 cents sharp.

Sharp or flat.

Find who is out, then say which way. Later maps bring a player who drifts, two out at once, and a band in parts.

Contest day in a concert hall: six players on stage, one tuner showing in tune, and the panel saying Right, A was 12 cents sharp.

Contest day.

The whole band on stage, a few cents out, and a rating for the last level. Finish a map and Sine wins its outfit.

Out now in Sine, on iPhone and Android. The Practice field, Friday night lights, Rehearsal and Summer lawn are free, and a high seas edition is in beta, with Port Pitch open.

New

Sine Circles.

Grow a tree with your friends. Every answer waters it, and everyone's Sine hangs out in the garden.

  • A tree for the year.From roots to an Elder tree, with a swing, a treehouse and lanterns on the way.
  • Sunshine.Practise on the same day as your friends and the sun comes out.
  • A canary.It hatches in the tree and learns the notes you call to it. Later, everyone gets a chick.
  • The daily challenge.The same set for everyone. The top score wears the crown.

Free in Sine. Start one from your profile.

A circle's garden: an autumn tree under a bright sun, a swing and a bench, and six Sines in their own outfits, one practising with a canary on its shoulder and one sending a note.

How good is your ear, as a number?

Four short parts, no reference note, one score out of a hundred: name the notes, spot who is out of tune, hold a note through a run of others, and catch the note that changed. It opens once a week, so the number means something.

  • Notes
  • Tuning
  • Hold it
  • Melody

Perfect pitch is something you're born with.

Adults learn it too. The notes first, one at a time, then the chords.

This is Sine.

A ring-tailed lemur with very good ears and plenty to say. He walks you through every new note, cheers you on a run, and keeps a secret or two.

Made by a small studio with big ears.

A handful of people who play, teach and build. The reply to your email comes from someone who made the thing.

About us

Get Sine.

Out now on iPhone and Android. Free to start.