AudioEngineer EAR Trainer

Train your ears for frequency and audio effects, from pink noise to your own music. Quiz and free-listen modes with instant answers.

AudioEngineer Ear Trainer is an ear-training app for audio engineers and musicians. Train your sense of frequency and your ear for audio effects in two modes — Quiz (guess the answer) and Listen (free, unscored). No login, no ads, no tracking, and it works completely offline.

■ Frequency Ear Training

Free · 10-band EQ boost/cut training with pink noise · Boost-only, cut-only, and mixed (guess the direction too) practice modes · Quiz + Listen modes · Best-streak tracking

Unlock Pro (one-time purchase) · 31-band 1/3-octave precision training (ISO 266 standard) · 12dB, 6dB, and 3dB boost/cut magnitude selection · Sine wave overlay mode · Train with your own imported music

■ Effects Listening

Free · Reverb, Delay, and Chorus — 3 effects included free · Quiz + Listen modes

Unlock Pro (one-time purchase) · 4 more effects — Flanger, Phaser, Tremolo, Distortion (7 total) · Import your own music to hear how each effect sounds on a real track

Available in Korean, English, Japanese, Spanish, and Simplified Chinese. Runs on iPhone, iPad, Mac, and Apple Vision Pro.