Perfect Pitch

Perfect Pitch is an ear-training app that runs entirely on your phone. There is no account to create and no server behind it. Every session, every score and every note you struggle with is written to a database on the device and stays there. Put the phone in aeroplane mode and nothing changes: the tones are generated on the spot and the scoring happens on your own CPU. WHAT YOU PRACTISE • Name that note — hear a tone, name it. The heart of absolute pitch. • Name that interval — how far apart are two notes? • Name that chord — major, minor, diminished, augmented, sus4 and the seventh family. • Sing the note — produce the note yourself and be scored live through the microphone, to the cent. • Review — only the notes you actually miss. FOUR DIFFICULTIES Beginner keeps to the seven white keys of one octave. Standard opens all twelve semitones across three octaves. Advanced widens the range and shortens the tone. Expert gives you 0.45 seconds across the full range — answer before it fades. IT LEARNS WHERE YOU ARE WEAK Every answer updates that note's accuracy, your response time and which notes you confuse it with. A spaced-repetition scheduler decides when each note comes back: miss one and it returns in the same session; get it right repeatedly and the gap widens. The review queue is built from your own mistakes, not a fixed lesson plan. A LIVE TUNER Sing or play into the microphone and watch the needle. Pitch detection runs on the device with a 128 ms window, refreshed twenty times a second, so the meter moves as you move. Nothing is recorded — the audio is analysed and discarded frame by frame. A LOG OF EVERYDAY SOUNDS A car horn, a bird, a kettle. Point the microphone at a sound and the app works out its pitch, frequency and harmonic structure, then files it in your sound log by category. Again, no recording is kept — only the analysis. PROGRESS WITHOUT A LEADERBOARD Twenty-one badges, personal bests and a practice-streak calendar. Every one of them measures you against your own past. There is no ranking against other people anywhere in the app, by design. TUNED THE WAY YOU PLAY Set the reference pitch anywhere from 415 to 444 Hz and every tone follows it — useful if you play early music at 415 or with an orchestra at 442. Choose between a piano voice and a pure sine wave, which has no overtones at all and so tests whether you are hearing the pitch itself rather than the timbre around it. Note names can be shown as sharps, flats or solfège. FIVE LANGUAGES English, Korean, French, German and Spanish. The app follows your device language on first run and can be changed at any time in Settings. YOUR DATA IS YOURS Export your whole training record as a JSON file — save it straight to a folder on the device, or share it wherever you like — and load it back on a new phone. There is no cloud copy because there is no cloud. Perfect Pitch is free and supported by a banner ad, shown only while you are online and only after you have given consent.

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