For musicians, students, teachers, and live sound learners
Train your ears to recognize frequency ranges
Listen to a tone, identify its frequency range, and build practical listening skills for instruments, music, and live sound.
Get Check1.2 free on the App StoreMake ear practice part of your day
Daily Ear Training is free once a day: 6 single-tone questions and 4 A/B comparisons. Sign in to Game Center to join that day's worldwide ranking.
See which frequency ranges need practice
Answer frequency questions by ear. When a range appears at least three times, results can show where your accuracy is lower. The accuracy-by-range view shows how many questions you answered correctly in each range. Today's results are free; the Full version includes your history with no day limit.
Compare polarity by listening
In Speaker check, listen to A and B and choose which sounds reversed in polarity. This listening check is free.
Free to download. Optional Full version.
No account is required. The Full version was $6.99 as a one-time U.S. App Store purchase in October 2026 and includes a 7-day free trial. No automatic charge when the trial ends. Regional prices may differ and can change.