This app is the first of its kind to measure the interval by moving around two notes on the staff.
Touch and see for yourself the name of the music interval you're looking for.
The interval is automatically measured when you change the pitch of the note with a sharp or a flat.

◈ The name of the interval as well as the number of semitones are shown concurrently to help the user understand the interval systematically (the number of semitones is shown for an interval smaller than an octave and the name of compound interval is shown for the ninth interval or larger).

◈ Interval test feature has been added. Now users can improve their skills by testing themselves.
About test level : Beginning level does not have any accidental signature. Intermediate level may contain one sharp one flat or no accidental signature. Advanced level contains various accidental signatures.

◈ You can practice interval sight singing using the ▷ and T buttons.

I hope this app is useful for you to study the music interval. Thank you.