IntervalEar - Ear Training

Measure audio frequencies and sound tones with ease. Core features work offline, no account required.

We won't promise you perfect pitch — for adults that's next to impossible, and honest apps shouldn't claim otherwise. IntervalEar trains relative pitch, the skill every musician actually uses: hearing the distance between two notes.

20-LEVEL TRAINING PATH, ALL FREE. Start by telling an octave from a unison, then add fifths, fourths, thirds… up to all 12 intervals. Ascending melodies first, then descending, finally harmonic (both notes at once). Pass each level at 90% accuracy. Levels unlock purely by your own progress — nothing is behind a paywall.

MISTAKES ARE THE LESSON. Every wrong answer offers "hear it again" and "compare": the correct interval, then the one you chose, back to back until your ear locks in the difference. Replay as often as you like before answering — no penalty.

NOTE NAMING, ALL THREE TIERS OPEN. Hear the reference note C, then name the target note. White keys, all 12 notes, or memory reference (reference plays once per session). Unlimited sessions.

VISIBLE PROGRESS. Accuracy curve over your last 30 sessions, per-interval mastery bars (weakest on top), and your top 3 mix-ups.

DAILY PRACTICE. One 3-minute session a day keeps your streak alive.

THREE LANGUAGES. English, 简体中文, 日本語.

About ads and privacy: all training content is free, with a single banner at the bottom of the screen. Your practice records stay on your phone — never uploaded, no tracking, and no "Allow Tracking" prompt. Apart from that banner, every feature works offline. Prefer no banner? A one-time "Remove Ads" purchase is available in Settings. It only hides the banner — it does not unlock anything, because everything is already free.