Pitch trainer - Harmonize
Ear training & perfect pitch
Free · In-App Purchases
New stage: Sight Reading. Read the notes on the staff, answer on the keyboard. Nine categories, 1,020 exercises — and none you can solve by fingers alone.
Ear training, play by ear, intervals, chords and rhythm — 15 games in one app.
Warm up your ears before singing, band, orchestra, choir, guitar or piano practice.
Harmonize teaches distance between notes by making you rebuild what you just heard. Your mic picks up your voice or instrument and shows how far off you are, in cents. No music theory needed: a friendly shrimp plays the example, and you copy it.
■ Build the interval
- Double Stop — add a second note on top of a reference: octave, perfect fifth, major third and more
- Chords — take one role inside a three-note chord and hold your part
- Moon — a slow, low-gravity version of Double Stop for advanced ears
- Low Register — the real bass range, so low that a phone speaker cannot reproduce the fundamental; you read the pitch from its overtones
- Trill — hold one finger down and press/lift with another. 6 fingerings x 36 exercises
■ Read the score
- Sight Reading — read the notes on the staff and answer on the two-row keyboard. The white keys are labeled with their note names, so you can count lines and spaces even if sheet music is new to you. 9 categories, 180 levels, 1,020 exercises
■ Rhythm
- Rhythm — tap along with the scrolling score
- Polyrhythm — two different pulses at once, one per hand
- Mimic Taiko — call and response on Japanese drums. Hear a pattern, play it back
- Silence — no sound at all. Measure time with your internal clock
■ Listen and remember
- Play by Ear — reproduce the melody you heard on the keyboard. 9 categories, 129 levels, 516 phrases
- Scales — trace a scale one note at a time
- Arpeggios — hear a broken chord and follow it
- Memory — a sound version of concentration: find the two takoyaki that ring alike
- Goldfish Scooping — memorize each swimming fish by its note, then scoop them in the order given
■ Tools
- Weekly Challenge — 5 tasks that change every week, with the example played only once. 3 runs per week, ranked on a Game Center weekly leaderboard
- Metronome
- Tuner — live readout in cents
■ Under the hood
- 13 instrument sounds to choose from
- Reference A from 440 to 446 Hz
- Note names in English, German, Japanese or Italian
- Rhythm games calibrate audio latency for your device
- Judged against just intonation, so it carries straight over to choir, wind band, orchestra and ensemble work
- A tutorial that gets you playing right away
■ Made for
- Singers who want to stop drifting off pitch
- Anyone training relative pitch
- Players who want to pick up tunes by ear
- Musicians chasing that moment when your note locks into the chord
■ Languages
Japanese, English, German, Spanish, French, Italian, Korean, Chinese (Simplified and Traditional)
Free to start. Extra content and ad removal are one-time purchases — there is no monthly subscription.
more The tuner now works with bass
The low E on a 4-string bass (41.2 Hz) and the low B on a 5-string (30.9 Hz) were below the tuner's range, so the needle never moved. Both are now detected.
Audio interfaces work too, even when your instrument is not plugged into input 1. On interfaces where the DI is the second input, the tuner used to hear only silence.
You can see which input is in use
The screen now shows "Input: iPhone Microphone" or the name of your interface, so you can tell whether it switched over. It follows along when you plug and unplug.
26.8.27 4 hr ago
New stage: Sight Reading
Notes appear on the staff. Read them, then play them on the keyboard below. The white keys are labeled with their note names, so you can count lines and spaces even if sheet music is new to you. The fewer misses, the more stars.
Four categories are free: Around Middle C, Notes on the Staff, High Notes & Ledger Lines, and Note by Note. Beyond them wait Sharps, Two Notes, Chords, and drills built from the upper and lower ranges alone. Nine categories, 1,020 exercises in all.
No more exercises you can solve without reading
When the same shape just slides sideways, or the notes only climb one step at a time, your fingers can answer without your eyes. Every category has been rewritten so that you have to read each note to move on.
A bigger, clearer staff
The staff no longer changes size from one exercise to the next, and the lines sit further apart.
26.8.24 3 days ago
Trill practice now actually gets you to the finish
The mastery gauge counts total passes instead of consecutive ones. A single miss no longer empties it. Four passing phrases clear the exercise.
Before this, the demo could cut in one phrase away from clearing and reset the gauge to zero, and it reappeared every time your anchor finger slipped and the rhythm check restarted. Both are fixed. If you ticked "Don't show this again," the demo no longer appears on its own while you practice.
Trill is now readable in seven more languages
German, Spanish, French, Italian, Korean and Chinese (Simplified and Traditional). Screens that stayed in English — fingerings, interval names, the one-line tips — are now translated.
Fixed screens where the "Background animation" setting did nothing
In Silence, Mimic Taiko and Goldfish Scooping, the stars and lanterns kept moving even with the setting turned off.
26.8.12 12 Aug
New stage: Ear Copy
A piano plays a short melody. Play it back on the keyboard. The trick is to follow the rise and fall by ear. One wrong note and the phrase starts over - and the example plays again, so you always get another listen. The button in the corner replays it whenever you want.
Four categories - steps, leaps, longer phrases, and starting anywhere - stay on the white keys and are free to play. Beyond them are categories that use the black keys, plus well-known melodies from Twinkle Twinkle to Fur Elise: over 500 phrases in all. The home note is a button you can press any time, so you can find your bearings again whenever the key slips away.
Polyrhythm feels better under the fingers
Pads light up the moment you press them, and their colour tells you whether the hit landed.
Fixed: Background animation setting had no effect on two stages
Scale and Arpeggio kept moving even with the setting turned off.
Fixed: Three cards showed their internal names in the card reordering screen
26.8.10 11 Aug
New stage: Trill
Hold one finger down and tap with another, moving between two notes. Which fingers you use is up to you. Six fingerings are tracked separately - index and middle, middle and ring, ring and little, and more - so the stars show at a glance which pairing needs work. Tempos run from 40 to 80, with four rhythms per beat. What is scored is not raw speed but how even your presses and releases are.
A new feel for every button
The tap sound is lighter now, and the haptics are finer. Buttons that were missing haptics have them too.
The tutorial has been redrawn
The finger is a proper illustration, and it moves the way you really play: swipe up, lift, and start again from the bottom.
Pick your instrument for the ranking
Choose an instrument before you start a challenge. That choice stays in the challenge and never changes your everyday settings.
Chord demo restored
Pressing the demo button plays the chord itself again, as it did before. Thank you for the feedback.
26.8.5 6 Aug
See which question you are on
Takoyaki, Scales, Arpeggios, Silence and Goldfish Scooping now show the question number, like "Question 3/12". You can tell at a glance whether "Next" moved you on or you are replaying the same one.
iPad layout fixes:
- The stars on the result screen are now centered
- In Scales, the row of confirmed notes is no longer hidden behind the moon
- In Double Stop and Moon, the question label at the bottom no longer overpowers the "note to match" badge
- In the tutorial, Kakifurya, the speech bubble and the buttons are now sized for the larger screen
Also:
- Fixed a spot near the bottom center of the tutorial that did not make a sound when touched
- Fixed the musical note being cut off in the listening expression
Thank you for using Harmonize!
26.7.29 29 Jul
See the role of every note
Double Stop, Moon and Low Register now show what each sounding note does in the chord — root, third, fifth and so on. Chord examples also play one note at a time and then all together, so it's easier to hear which notes are stacked.
Ebifurya and Kakifurya:
- Both close their eyes and listen while the example plays
- Ebifurya's expression on the result screen now changes with your star count
Columns added to Settings:
Short reads about how sound works are now available inside the app, and more will follow.
Also:
- Fixed an issue where sound effects stayed quiet after playing Low Register
- "Low Register" now appears in the what's new banner
Thank you for using Harmonize!
26.7.27 27 Jul
Chord exercises corrected
Fixed errors where some augmented and diminished triad exercises sounded a different chord, and one minor third exercise sounded a different interval. Those exercises now play the correct chord.
Other improvements:
- Mimic Taiko and Sound Maze now pause while Notification Center or another app is open
- The position marker in the exercise list now follows the level you reach with Next
Thank you for using Harmonize!
26.7.25 25 Jul
A new stage for the low end: "Low Register"!
Tune intervals in the bass range — octaves, fifths, fourths and major thirds — the way a bassist checks pitch by ear. Every problem lands on a pure, beat-free interval, across the full chromatic range and four bass voices: double bass, electric bass, tuba and bassoon.
- Octaves, fifths, fourths and thirds are free to play
- The "beyond the octave" category (tenths, twelfths, two and three octaves) unlocks with PRO
Other improvements:
- Purchase restore is more reliable
- Minor bug fixes
Thank you for using Harmonize!
26.7.23 24 Jul
A new taiko drumming stage, "Mimic Taiko," arrives!
Listen to the rhythm Sensei Murugai plays, then tap it right back — a call-and-response stage. From basic patterns to triple meter, triplets, sixteenths and syncopation: 5 categories and a generous 58 levels, all free to play.
- Learn rhythm by feel with the listen, ready, mimic flow
- The metronome pauses between questions so each one feels clearly separated
- Added Italian language support
Other improvements:
- The "you are here" marker in each stage list now correctly points to the problem you played last
- Minor bug fixes
Thank you for using Harmonize!
26.7.19 19 Jul
Goldfish Scooping grows to 20 questions!
The question book expands from 12 to 20. Later rounds pack up to 8 goldfish into the tub, putting your ear for timbre to the test. The advanced "Shadow Tub" stall is available with PRO.
The Silent "Body Clock" stage also gets new touches:
- A shooting star now crosses the night sky every so often
- The mascot Bizen-Kurage joins the count-in
- Right after the start, a millisecond stopwatch shows exactly how far your inner clock drifts
Other improvements:
- Added links to in-depth columns about tuning systems from the Chords, Scale and Silent stages
- Added a Bizen-Kurage app icon (change it in Settings)
- Fixed purchases not unlocking after approval with Family Sharing's Ask to Buy
- Fixed sounds continuing after leaving the Goldfish Scooping screen
- Minor bug fixes
Thank you for using Harmonize!
26.7.13 13 Jul
We have significantly reworked our sounds. The piano, electric piano, guitar, and chord tones have been rebuilt for a more realistic, natural resonance.
- You can now preview a tone the moment you select it. Melody stages also let you pick instruments intuitively from their illustrations.
- Added a reverb effect. You can turn it on or off from Sound Settings.
- Added a tone-change button to the Takoyaki stage as well.
Look and feel improvements:
- Redesigned the Settings screen with a calm, easy-on-the-eyes dark theme.
- Added German and Korean.
- On the rhythm result screen, we aligned the order of "Example" and "Your rhythm" to make comparing them clearer.
- Reworked how locked categories are shown so it is easier to see what you can play.
- Various minor bug fixes.
Thank you for using Harmonize!
26.7.10 10 Jul
Take on polyrhythms — the new "Polyrhythm" rhythm stage is here!
Tap different beats with your left and right hands. Start one hand at a time, then combine both. As you play on, the on-screen cues fade away until you play by ear alone — train your sense of rhythm under shimmering auroras.
New free tools for daily practice:
- Metronome: keep a steady tempo
- Tuner: check your instrument's pitch on the spot
Other improvements:
- Pick rhythm drum sounds from instrument illustrations
- Rearrange the home screen cards in any order you like
- New content is now highlighted on the home screen
- The game now resumes automatically after an alarm or phone call
- Minor bug fixes
Thank you for using Harmonize!
26.7.8 8 Jul
The tutorial got a complete makeover!
Kakifurya now appears in person, chatting through speech bubbles as she teaches you how to play. New hints kick in when you get stuck, so first-timers can find the knack of pitch-matching much faster.
In the Chords stage, badges now show each note's role in the chord (root, 3rd, 5th, 7th), so you can practice while learning what shapes the harmony.
More improvements:
- Volume sliders now respond the way your ears expect
- The status bar (clock and battery) is now visible
- Better takoyaki board layout on iPad
- Minor bug fixes
Thanks for using Harmonize!
26.7.3 3 Jul
You can now change the app icon!
From Settings, pick any of six character icons — Ebifurya, Kakifurya, Murugai, Takoyaki, and two Unicchi designs. They are all free. We also refreshed the default icon with a new Ebifurya design.
The characters got a visual upgrade too: brighter eyes, and a glossier look for Unicchi.
We also redesigned the ad-removal and purchase screens for clarity, gave the weekly ranking a new look, and fixed several minor issues.
Thanks for using Harmonize!
26.6.30 30 Jun
Three new stages are here!
Scale Guess
Name the notes of a flowing single-line melody by ear, do-re-mi style.
Takoyaki Memory
Flip the takoyaki and pair up the matching tones—a memory game of sound.
Arpeggio Guess
A chord is played note by note as an arpeggio. Catch each note in order.
These three stages unlock together with a single one-time purchase (each one is free to try first).
We also refreshed the iPad home screen layout and fixed minor issues.
Thanks for using Harmonize!
26.6.25 29 Jun
New mode: One-Shot Challenge!
Take on five weekly questions against the clock and compete worldwide on the Game Center weekly leaderboard (resets every Monday; last week's results are viewable too).
- Added a "FAQ" link in Settings
- Added progress bars to the home and result screens so your progress is easier to see
- Added new rhythm sound packs (electronic and world) and the ability to switch tones right in the rhythm screen
- Improved the data reset flow with a clearer scope and a completion message
- Various bug fixes and stability improvements
26.6.16 16 Jun
New mode: One-Shot Challenge!
Take on five weekly questions against the clock and compete worldwide on the Game Center weekly leaderboard (resets every Monday; last week's results are viewable too).
- Added a "FAQ" link in Settings
- Added progress bars to the home and result screens so your progress is easier to see
- Added new rhythm sound packs (electronic and world) and the ability to switch tones right in the rhythm screen
- Improved the data reset flow with a clearer scope and a completion message
- Various bug fixes and stability improvements
26.6.15 15 Jun
Five new tones join the band: Trumpet, Trombone, Shakuhachi, Flute, and Whistle! The Violin tone has also been reworked for a more realistic sound.
- Tap a character on the game screen to change its tone on the spot (or use the note button at the top to change both at once)
- When Whistle, Flute, or Shakuhachi is selected, characters now make a whistling face while playing
- Removed some tones (Music Box, 8-bit, Humming)
- Fixed minor issues and improved stability
26.6.11 11 Jun
New "Rhythm" training stage! Tap the off-beats along with the metronome to sharpen your sense of rhythm. Review your taps with instant replay, and calibrate away Bluetooth earphone latency. The first rhythm is free; unlock the rest by collecting stars or with a one-time purchase.
- Refreshed the home screen card designs (a sun setting on the horizon, a sailboat, the Earth seen from the Moon, and more)
- Improved the guide texts in every mode to be clearer and more natural
- Fixed an issue where sound effects could go silent after plugging or unplugging earphones
- Fixed minor issues and improved stability
26.6.10 10 Jun
New "Moon" training stage! On the airless Moon, notes don't sound together—so you match pitch from memory, without beats to guide you (an advanced mode). The first three categories are free; unlock the rest by progressing or with a one-time purchase.
- You can now switch the app's display language in Settings (Japanese / English / Chinese (Simplified & Traditional) / Spanish / French)
- Added Spanish and French localization
- Refined the settings button design to blend in better
- Fixed minor issues and improved stability
26.6.7 9 Jun
- Added a new card-style home screen (Tutorial / Double Stop / Chords)
- New built-in tutorial you can play anytime: listen to the example, then trace with your finger to practice matching the pitch
- New Sound settings: adjust each character's volume individually, choose tones, and preview a test sound
- Reduced sound-effect latency and improved audio stability
- Enhanced background visuals (drifting clouds in the morning, shimmering sea at dusk)
- Improved the chord theme color and button text readability
26.6.6 6 Jun
サイトURLを変更しました
26.4.0 18 Apr
Fixed help page URLs.
26.1.0 6 Jan
The tuner now works with bass
The low E on a 4-string bass (41.2 Hz) and the low B on a 5-string (30.9 Hz) were below the tuner's range, so the needle never moved. Both are now detected.
Audio interfaces work too, even when your instrument is not plugged into input 1. On interfaces where the DI is the second input, the tuner used to hear only silence.
You can see which input is in use
The screen now shows "Input: iPhone Microphone" or the name of your interface, so you can tell whether it switched over. It follows along when you plug and unplug.
more Version 26.8.27 4 hr ago
Data Used to Track You The following data may be used to track you across apps and websites owned by other companies:
Data Not Linked to You The following data may be collected but it is not linked to your identity: