Learn to harmonize
by ear.
Harmonize listens as you sing and shows you the pitch in real time, so you learn to harmonize without automatically.
No accounts. No sign-up. Your singing never leaves your device.
Practice that listens
Real-time pitch detection turns a quiet room into a patient singing coach.
Instant pitch feedback
Sing a note and see exactly how close you are, updated live as your voice moves.
Guided lessons
Bite-size lessons so any age and skill level can quickly learn to harmonize.
Built for your range
Harmonize finds your vocal range first, then tailors every lesson to notes you can actually reach.
Build a hot streak
Nail notes back to back and your streak flame grows, rewarding focus and pulling you deeper into each session.
Earn your balloons
Every note you nail inflates a balloon, turning steady practice into something you can see float up.
Private by design
No accounts, no recordings. Your audio is analyzed on-device and discarded the instant it is heard.
Three steps to harmonize
From first note to daily habit, Harmonize keeps it simple.
Set your range
Hum your lowest and highest comfortable notes. Harmonize maps your voice in seconds.
Sing along
Follow the guided lessons and match each target note with live, on-pitch feedback.
Stay locked in
String correct notes into a streak, fill your balloons, and push each practice session a little further.
Your voice stays yours
Microphone audio is processed live on your device to detect the pitch you sing, then immediately discarded. It is never recorded, saved, or sent anywhere.
There are no accounts and no personal data. We send only anonymous, aggregate usage and crash stats so we can fix bugs, and that data can never identify you.