Some users seemed to prefer written confirmation on top of auditory + visual information. To satisfy the need, 1.0.7 provides "subtitle" of what you hear with English-based sound in some pages. For example, when you hear "ㄱ, ㅏ, 가" on page 1-4, you will see subtitle like this:
ㄱ(g) + ㅏ(a)
ㄱ(g) + ㅏ(a) = 가(ga)
I hope this gives confidence in what you hear and help more users learn Korean letters.