Missing some hiragana diacritics

The methodology they use to learn the hiragana characters isgreat but its missing some, such as gi, ji, pu, ge, gyu, byo etc...it only has the main monographs. It would be a top app if it included these but only includes 46. There is also room for improvement in their examples by using the sounds of the characters rather than the visual. Since "ru" sounds like "lu" when spoken I wish they would use phrases and pictures to match that, rather than match the visual e.g. "ru Russian rubies" instead they could use "ru Lucy Liu". I hope they add the rest of the characters to this app!

Middlefee about Dr. Moku's Hiragana Mnemonics, v1.05