Rusty
The app is overall pretty good and I like the formats presented. There is a significant issue though. I just finished the "Getting Started" section of the voyage and now any time I try to go to the voyage view, the app crashes. That includes at the end of any lesson I'm doing and often the progress does not save after completing that lesson. This makes the app basically unusable.
Karl Johnson
There are a few errors in the app, wrong words, missing graphic. More importantly, it is essentially just vocabulary, no sentences, lacks meaningful connections to real experiences one might have in Hong Kong. Also, it should teach how to write characters, since memorizing the look of the characters without any attempt at writing them is really hard!
Chris King
It's glorified flash cards. It's OK, but it doesn't explain the language at all. It's just pairings of pictures and words. There aren't many Cantonese apps and I guess I'm stuck with Premium for a year, so I'm going to keep trying with it. It's been difficult to retain words from this app and to make sense of the language. If you already know some Mandarin, it helps with understanding some of the sentence structure.