You hear a melody and know where the notes sit.
- Hear it.
- See it.
- Feel it.
- Sing it.
Learn music one song at a time.
Pick a song you love. Key Quest teaches just what it needs:
- Hearing the notes
- Singing them in tune
- Reading them on the staff
- Feeling the rhythm
You'll learn theory and train your ear without it ever feeling like homework.
Your first song is free. For iPhone and iPad.
A few songs from now, music starts to make sense.
Not because you memorized rules, but because your ear learned what to listen for.
A wrong note stops being a mystery. You hear what happened.
You find your starting note without a piano.
You hear when you're flat and correct it mid-note.
A song changes key and you don't lose your place.
You pick up a song by ear, without sheet music.
Your mission: play or sing any melody by ear, in any key.
Ten levels. Real songs. You always know where you are.
Prelude to Finale: ten stages with real songs. Follow the glow into the quests.
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1 · Prelude
Keep it Simple
Start here -
2 · Motif
A Few More Shapes
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3 · Phrase
Longer Lines
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4 · Melody
Bigger Leaps
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5 · Harmony
Fresh Colors
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6 · Groove
Busier Bounce
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7 · Cadence
Tighter Pocket
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8 · Allegro
Full Speed Ahead
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9 · Cold Open
Feel It Live
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10 · Finale
Bring It Home
Your ear is better than you think.
Three quick questions, the way Key Quest asks them. Turn your sound on.
- Hear it.
- Tap it.
- Resolve it.
Hear it.
Tap play to hear two notes. Is the second note higher or lower?
Tap it.
Hear the rhythm, then tap it back.
Resolve it.
Which ending sounds finished? Hear both, then choose.
30 XP earned
You just proved your ear can do this.
Hearing, rhythm and the pull of an ending. Key Quest builds all three, one song at a time.
Keep going in the appEvery correct answer earns XP. Miss one and the Coach slows it down, just like in the app.
Clear the song. Earn the key. Open the door.
Each song you beat fills a piece of that level's key. A full key opens the next level, and you'll feel it.
Quests
Short ear challenges built from that song's own notes, like the three you just tried.
Boss battle
Then the real song. Play or sing along while the notation follows you, scored note by note.
Level up
Clear it and your key turns in the lock, the doors swing open, and a new level is waiting.
Good. That's how ears learn.
Everyone misses. Key Quest is built for that moment: it helps you through it instead of marking you wrong.
Try it before you answer
Tap any key to hear it and work it out yourself. Nothing counts until you tap That's my answer. On the early levels you can also hear the beat or the tune again, for a few points.
Hear what happened
A miss replays your note next to the right one, so you hear the difference instead of just seeing a red X.
It meets you where you are
New kind of question? The Coach shows you how it works, then helps from your very first miss, a little more each try. Once you know it, it steps back.
Rhythm slows down with you
Count-in numbers, then a slower tempo, then the beat as gentle taps you can feel, until it clicks.
No dead ends
Missed notes in a boss battle? Your review jumps to the first miss, the Coach names what tripped you, and you go again.
Some days it's hard. That's normal. Showing up is the part that counts.
A few minutes a day adds up fast.
Key Quest notices when you show up, and quietly helps you keep going.
Streaks with a safety net
Practice a little each day to grow your streak. Miss a day and a streak freeze has your back.
A daily goal that fits your day
Pick how much practice feels right. Reminders arrive at the time you choose, never at random.
Your week, recapped
Every Sunday: what you practiced, what improved and what's next. Plus achievements to unlock along the way.
Your first song is on us.
Levels 2–10 are where it becomes a skill.
Play the opening quest with no sign-up and no payment. Then unlock every level when you're ready.
- Play your first songHear it, see it, tap it, and beat your first boss. Free, no account needed.
- Unlock Key QuestChoose annual or monthly. Annual works out to about $10 a month.
- Keep your streak goingA new level, new songs, and a key to earn. Cancel anytime.
Annual
- Levels 2 through 10: every song, every boss battle
- Songs auto-transpose to fit your voice or instrument
- Instant scoring on what you play or sing
- New songs every two months
- Live notation that follows you as you play or sing
Monthly
- Everything in Annual
- Flexible month to month
Prices in USD. The App Store shows your local price. Subscriptions are managed in your Apple Account settings.
Good to know
Do I need to read music or know any theory?
No. Key Quest starts from zero. You'll pick up reading and theory naturally as you play, one song at a time.
Which instruments work?
Key Quest is for melodic instruments: anything that plays a tune one note at a time. That includes your voice, violin, cello, flute, clarinet, saxophone and trumpet, plus piano or guitar when you play the melody line. It listens for a single note, so chords, strumming and drums aren't supported. Early levels use an on-screen tap pad, so you can start with just your phone, and songs transpose to fit your range or instrument.
Does it listen to me? What about privacy?
From Level 2, Key Quest uses the microphone to hear the pitch you play or sing and score it in real time. Audio is analyzed on your device and isn't recorded or uploaded. Read our Privacy Policy for details.
What devices are supported?
iPhone and iPad running iOS 26 or later. Headphones help during play-along. If you use Bluetooth headphones, Key Quest can calibrate for their delay.
How does the subscription work?
Your first song is free as part of getting started, with no account or payment. After that, Key Quest is a subscription, billed annually or monthly through your Apple Account. You can cancel anytime in your Apple Account settings. See our Terms.
How do I get help?
Visit Support or email support@playkeyquest.app.
Every note is key.
Your quest starts with one song.
Hear it. See it. Feel it. Sing it. Then do it again, a little better, with the next song.
Coming soon to the App Store.
Key Quest